-27.24% is the change from 591 to 430
Calculation steps:
[( 430 - 591 ) ÷ 591] x 100 = -27.24%
Formula
Percentage change = [(430 - 591) / 591] x 100
Subtract the new number by the original number
430 - 591 = -161
-161 ÷ 591 = -0.272419627749577
-0.272419627749577 x 100 = -27.24%