The bill for a meal at a restaurant before tax is $84.00. the sales tax rate is 7% and you want to leave a 20% tip based on the pre-tax amount. what is the final amount of money you will spend?
The pree tax amount count as 100%, then there's the 7% tax and lastly the 20% tip. therefore, one would pay (100+20+7)% of $84.00. 127% of $84.00 (127/100) * $84.00 = $106.68
