-93.44% is the change from 823 to 54
Calculation steps:
[( 54 - 823 ) ÷ 823] x 100 = -93.44%
Formula
Percentage change = [(54 - 823) / 823] x 100
Subtract the new number by the original number
54 - 823 = -769
-769 ÷ 823 = -0.9343863912515188
-0.9343863912515188 x 100 = -93.44%