-24.88% is the change from 820 to 616
Calculation steps:
[( 616 - 820 ) ÷ 820] x 100 = -24.88%
Formula
Percentage change = [(616 - 820) / 820] x 100
Subtract the new number by the original number
616 - 820 = -204
-204 ÷ 820 = -0.24878048780487805
-0.24878048780487805 x 100 = -24.88%