-19.88% is the change from 815 to 653
Calculation steps:
[( 653 - 815 ) ÷ 815] x 100 = -19.88%
Formula
Percentage change = [(653 - 815) / 815] x 100
Subtract the new number by the original number
653 - 815 = -162
-162 ÷ 815 = -0.19877300613496932
-0.19877300613496932 x 100 = -19.88%