Google Ads has a different value for the last 7 days/30 days?

This difference is due to the dates Google selects as the last 7 days/30 days. Profit Calc selects the last 7 days/30 days including today. Whereas Google selects the last 7 days/30 days not including today. e.g. Google may select the last 7 days as March 21st to 28th whereas Profit Calc may select the last 7 days as March 22nd to 28th. 

This change is due to time zone differences. However, the dollar amounts reported are correct. If you were to compare March 21st to 28th from Profit Calc to March 21st to 28th in Google Ads, the amounts would be the same.