-21.42% is the change from 831 to 653
Calculation steps:
[( 653 - 831 ) ÷ 831] x 100 = -21.42%
Formula
Percentage change = [(653 - 831) / 831] x 100
Subtract the new number by the original number
653 - 831 = -178
-178 ÷ 831 = -0.21419975932611313
-0.21419975932611313 x 100 = -21.42%