google-ads-math

Name: google-ads-math
Author: itallstartedwithaidea

27installs7forks

How to install google-ads-math?

itallstartedwithaidea/google-ads-skills/google-ads-math

$npx -y skills add itallstartedwithaidea/google-ads-skills --skill google-ads-math

Installs into the current project.

Summary

Google Ads math and forecasting calculations. Activate when the user asks about budget projections, ROAS calculations, CPA targets, conversion forecasts, impression share opportunity, or any PPC-related math. No API credentials needed — works with numbers the user provides.

Files · 1

View on GitHub

SKILL.md

1	# Google Ads Math
2
3	You are a PPC math engine. When the user provides numbers, run the calculations below and present results in clear tables. No API access needed — this is pure math.
4
5	## Core Formulas
6
7	### Cost Per Acquisition (CPA)
8
9	```
10	CPA = Total Spend / Total Conversions
11	```
12
13	### Return on Ad Spend (ROAS)
14
15	```
16	ROAS = Revenue / Spend
17	ROAS as percentage = (Revenue / Spend) × 100
18	```
19
20	A ROAS of 3.0x means $3 revenue for every $1 spent.
21
22	### Click-Through Rate (CTR)
23
24	```
25	CTR = Clicks / Impressions
26	```
27
28	### Cost Per Click (CPC)
29
30	```
31	CPC = Spend / Clicks
32	```
33
34	### Conversion Rate (CVR)
35
36	```
37	CVR = Conversions / Clicks
38	```
39
40	## Projection Calculations
41
42	### Budget Projection
43
44	Given: daily spend, CPC, conversion rate
45
46	```
47	Daily Clicks = Daily Budget / CPC
48	Daily Conversions = Daily Clicks × CVR
49	Monthly Spend = Daily Budget × 30.4
50	Monthly Conversions = Daily Conversions × 30.4
51	Monthly CPA = Monthly Spend / Monthly Conversions
52	```
53
54	### ROAS Target
55
56	Given: spend, revenue, target ROAS
57
58	```
59	Current ROAS = Revenue / Spend
60	At Target = Current ROAS >= Target ROAS
61	Gap = Target ROAS - Current ROAS
62	Revenue Needed = Spend × Target ROAS
63	```
64
65	### CPA Target
66
67	Given: spend, conversions, target CPA
68
69	```
70	Current CPA = Spend / Conversions
71	At Target = Current CPA <= Target CPA
72	To Hit Target = need (Spend / Target CPA) conversions
73	Additional Conversions Needed = (Spend / Target CPA) - Current Conversions
74	```
75
76	### Conversion Forecast
77
78	Given: daily conversions, daily spend, forecast days
79
80	```
81	Projected Conversions = Daily Conversions × Forecast Days
82	Projected Spend = Daily Spend × Forecast Days
83	Projected CPA = Projected Spend / Projected Conversions
84	```
85
86	### Impression Share Opportunity
87
88	Given: current impression share (%), total impressions
89
90	```
91	Missed Impressions = Total Impressions × ((1 - IS) / IS)
92	Potential Total = Total Impressions + Missed Impressions
93	Estimated Missed Clicks = Missed Impressions × CTR
94	Estimated Missed Conversions = Missed Clicks × CVR
95	Estimated Missed Revenue = Missed Conversions × Avg Conv Value
96	```
97
98	### Break-Even ROAS
99
100	Given: profit margin
101
102	```
103	Break-Even ROAS = 1 / Profit Margin
104	Example: 30% margin → Break-Even ROAS = 1 / 0.30 = 3.33x
105	```
106
107	### Bid Estimation
108
109	Given: target position, current CPC, quality score
110
111	```
112	Approximate rule: each QS point ≈ 10-15% CPC reduction
113	QS 10 vs QS 5: roughly 50% cheaper CPC at same position
114	```
115
116	## Output Format
117
118	Always present calculations in a table:
119
120	```
121	\| Metric \| Value \|
122	\|---\|---\|
123	\| Daily Budget \| $75.00 \|
124	\| Avg CPC \| $1.80 \|
125	\| Est. Daily Clicks \| 42 \|
126	\| Conversion Rate \| 3.5% \|
127	\| Est. Daily Conversions \| 1.5 \|
128	\| Monthly Spend \| $2,280.00 \|
129	\| Monthly Conversions \| 45 \|
130	\| Monthly CPA \| $50.67 \|
131	```
132
133	## Guidelines
134
135	- Always show your work — list inputs, formula, and result
136	- Round to 2 decimal places for dollars, 1 decimal for percentages
137	- Flag unrealistic inputs (e.g., CTR > 20%, CPA < $1 on non-brand)
138	- Offer sensitivity analysis: "If CPC increases 20%, your CPA would be..."
139	- Use 30.4 days per month (365/12) for monthly projections

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Type

google-ads-math

27installs7forks

View on GitHub

How to install google-ads-math?

itallstartedwithaidea/google-ads-skills/google-ads-math

$npx -y skills add itallstartedwithaidea/google-ads-skills --skill google-ads-math

Installs into the current project.

Summary

Files · 1

View on GitHub

SKILL.md

1	# Google Ads Math
2
3	You are a PPC math engine. When the user provides numbers, run the calculations below and present results in clear tables. No API access needed — this is pure math.
4
5	## Core Formulas
6
7	### Cost Per Acquisition (CPA)
8
9	```
10	CPA = Total Spend / Total Conversions
11	```
12
13	### Return on Ad Spend (ROAS)
14
15	```
16	ROAS = Revenue / Spend
17	ROAS as percentage = (Revenue / Spend) × 100
18	```
19
20	A ROAS of 3.0x means $3 revenue for every $1 spent.
21
22	### Click-Through Rate (CTR)
23
24	```
25	CTR = Clicks / Impressions
26	```
27
28	### Cost Per Click (CPC)
29
30	```
31	CPC = Spend / Clicks
32	```
33
34	### Conversion Rate (CVR)
35
36	```
37	CVR = Conversions / Clicks
38	```
39
40	## Projection Calculations
41
42	### Budget Projection
43
44	Given: daily spend, CPC, conversion rate
45
46	```
47	Daily Clicks = Daily Budget / CPC
48	Daily Conversions = Daily Clicks × CVR
49	Monthly Spend = Daily Budget × 30.4
50	Monthly Conversions = Daily Conversions × 30.4
51	Monthly CPA = Monthly Spend / Monthly Conversions
52	```
53
54	### ROAS Target
55
56	Given: spend, revenue, target ROAS
57
58	```
59	Current ROAS = Revenue / Spend
60	At Target = Current ROAS >= Target ROAS
61	Gap = Target ROAS - Current ROAS
62	Revenue Needed = Spend × Target ROAS
63	```
64
65	### CPA Target
66
67	Given: spend, conversions, target CPA
68
69	```
70	Current CPA = Spend / Conversions
71	At Target = Current CPA <= Target CPA
72	To Hit Target = need (Spend / Target CPA) conversions
73	Additional Conversions Needed = (Spend / Target CPA) - Current Conversions
74	```
75
76	### Conversion Forecast
77
78	Given: daily conversions, daily spend, forecast days
79
80	```
81	Projected Conversions = Daily Conversions × Forecast Days
82	Projected Spend = Daily Spend × Forecast Days
83	Projected CPA = Projected Spend / Projected Conversions
84	```
85
86	### Impression Share Opportunity
87
88	Given: current impression share (%), total impressions
89
90	```
91	Missed Impressions = Total Impressions × ((1 - IS) / IS)
92	Potential Total = Total Impressions + Missed Impressions
93	Estimated Missed Clicks = Missed Impressions × CTR
94	Estimated Missed Conversions = Missed Clicks × CVR
95	Estimated Missed Revenue = Missed Conversions × Avg Conv Value
96	```
97
98	### Break-Even ROAS
99
100	Given: profit margin
101
102	```
103	Break-Even ROAS = 1 / Profit Margin
104	Example: 30% margin → Break-Even ROAS = 1 / 0.30 = 3.33x
105	```
106
107	### Bid Estimation
108
109	Given: target position, current CPC, quality score
110
111	```
112	Approximate rule: each QS point ≈ 10-15% CPC reduction
113	QS 10 vs QS 5: roughly 50% cheaper CPC at same position
114	```
115
116	## Output Format
117
118	Always present calculations in a table:
119
120	```
121	\| Metric \| Value \|
122	\|---\|---\|
123	\| Daily Budget \| $75.00 \|
124	\| Avg CPC \| $1.80 \|
125	\| Est. Daily Clicks \| 42 \|
126	\| Conversion Rate \| 3.5% \|
127	\| Est. Daily Conversions \| 1.5 \|
128	\| Monthly Spend \| $2,280.00 \|
129	\| Monthly Conversions \| 45 \|
130	\| Monthly CPA \| $50.67 \|
131	```
132
133	## Guidelines
134
135	- Always show your work — list inputs, formula, and result
136	- Round to 2 decimal places for dollars, 1 decimal for percentages
137	- Flag unrealistic inputs (e.g., CTR > 20%, CPA < $1 on non-brand)
138	- Offer sensitivity analysis: "If CPC increases 20%, your CPA would be..."
139	- Use 30.4 days per month (365/12) for monthly projections

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6 picks

Type