Formula #1: ROAS
The difference between ROAS (return on ad spend) and ROI (return on investment) is whether or not you’re accounting for a company’s cost of doing business
When you talk about ROI, you’re looking at your PPC spend in a multidimensional way. ROI seeks to answer, “after accounting for the costs of the products or service and after accounting for the cost of advertising, did we make a profit?”
What you need to calculate ROAS:
- Total Conversion Value
- Total Cost of Advertising
The Formula:
Total Conversion Value / Total Cost of Advertising
Example:
Your client runs a lead gen website that sells its leads to attorneys throughout the United States. The client asks you what their return on ad spend has been over the past 30 days.
They spent 17,547 INR on their AdWords campaigns which brought in 489 leads. 375 of those leads were sold to attorneys for an average of INR 130 / lead.
Their total conversion value: 48,750 (130 x 375)
ROAS: 2.78 or 278% (48,750 / 17,547)
ROAS: 2.78 or 278% (48,750 / 17,547)
You can report back to the client that their ROAS for the past 30 days was 278%, which means that for every rupee spent on advertising they made back 2.78 .
Tip:
AdWords actually has a column specifically built for ROAS called Conv. Val / Cost. If your campaigns are accurately tracking conversion value then you can use this column to calculate your ROAS quickly.
However for non e-commerce sites that aren’t tracking conversion values for each conversion inside the account, you’ll need to calculate ROAS by hand using the information your client gives you.
