-91.38% is the change from 824 to 71
Calculation steps:
[( 71 - 824 ) ÷ 824] x 100 = -91.38%
Formula
Percentage change = [(71 - 824) / 824] x 100
Subtract the new number by the original number
71 - 824 = -753
-753 ÷ 824 = -0.9138349514563107
-0.9138349514563107 x 100 = -91.38%