-27.66% is the change from 817 to 591
Calculation steps:
[( 591 - 817 ) ÷ 817] x 100 = -27.66%
Formula
Percentage change = [(591 - 817) / 817] x 100
Subtract the new number by the original number
591 - 817 = -226
-226 ÷ 817 = -0.2766217870257038
-0.2766217870257038 x 100 = -27.66%