-91.27% is the change from 813 to 71
Calculation steps:
[( 71 - 813 ) ÷ 813] x 100 = -91.27%
Formula
Percentage change = [(71 - 813) / 813] x 100
Subtract the new number by the original number
71 - 813 = -742
-742 ÷ 813 = -0.9126691266912669
-0.9126691266912669 x 100 = -91.27%