-93.15% is the change from 817 to 56
Calculation steps:
[( 56 - 817 ) ÷ 817] x 100 = -93.15%
Formula
Percentage change = [(56 - 817) / 817] x 100
Subtract the new number by the original number
56 - 817 = -761
-761 ÷ 817 = -0.9314565483476133
-0.9314565483476133 x 100 = -93.15%