Problem
Micheal received a salary increase of 15%. What percent of his original salary will he now be paid.
Solution
Let's assume that the original salary is $1000 and we know that Michael recieve an increase of 15% let x the new salary, we can conclude that the new percent would be:
115%
Since the original % is 100% and with a 15% of increase would be 100+15%= 115%