-15.57% is the change from 591 to 499
Calculation steps:
[( 499 - 591 ) ÷ 591] x 100 = -15.57%
Formula
Percentage change = [(499 - 591) / 591] x 100
Subtract the new number by the original number
499 - 591 = -92
-92 ÷ 591 = -0.155668358714044
-0.155668358714044 x 100 = -15.57%