-9.31% is the change from 591 to 536
Calculation steps:
[( 536 - 591 ) ÷ 591] x 100 = -9.31%
Formula
Percentage change = [(536 - 591) / 591] x 100
Subtract the new number by the original number
536 - 591 = -55
-55 ÷ 591 = -0.09306260575296109
-0.09306260575296109 x 100 = -9.31%