-13.2% is the change from 591 to 513
Calculation steps:
[( 513 - 591 ) ÷ 591] x 100 = -13.2%
Formula
Percentage change = [(513 - 591) / 591] x 100
Subtract the new number by the original number
513 - 591 = -78
-78 ÷ 591 = -0.1319796954314721
-0.1319796954314721 x 100 = -13.2%