Solve the following word problems for the unknown. Round decimals to hundredths and percents to the nearest tenth when necessary. After a 15% pay raise, Scott Walker now earns $27,600.

Solve the following word problems for the unknown. Round decimals to hundredths and percents to the nearest tenth when necessary.
After a 15% pay raise, Scott Walker now earns $27,600. What was his salary before the raise?