-27.58% is the change from 591 to 428
Calculation steps:
[( 428 - 591 ) ÷ 591] x 100 = -27.58%
Formula
Percentage change = [(428 - 591) / 591] x 100
Subtract the new number by the original number
428 - 591 = -163
-163 ÷ 591 = -0.27580372250423013
-0.27580372250423013 x 100 = -27.58%