-91.01% is the change from 823 to 74
Calculation steps:
[( 74 - 823 ) ÷ 823] x 100 = -91.01%
Formula
Percentage change = [(74 - 823) / 823] x 100
Subtract the new number by the original number
74 - 823 = -749
-749 ÷ 823 = -0.9100850546780073
-0.9100850546780073 x 100 = -91.01%