-90.53% is the change from 824 to 78
Calculation steps:
[( 78 - 824 ) ÷ 824] x 100 = -90.53%
Formula
Percentage change = [(78 - 824) / 824] x 100
Subtract the new number by the original number
78 - 824 = -746
-746 ÷ 824 = -0.9053398058252428
-0.9053398058252428 x 100 = -90.53%