-71.71% is the change from 820 to 232
Calculation steps:
[( 232 - 820 ) ÷ 820] x 100 = -71.71%
Formula
Percentage change = [(232 - 820) / 820] x 100
Subtract the new number by the original number
232 - 820 = -588
-588 ÷ 820 = -0.7170731707317073
-0.7170731707317073 x 100 = -71.71%