-91.56% is the change from 912 to 77
Calculation steps:
[( 77 - 912 ) ÷ 912] x 100 = -91.56%
Formula
Percentage change = [(77 - 912) / 912] x 100
Subtract the new number by the original number
77 - 912 = -835
-835 ÷ 912 = -0.9155701754385965
-0.9155701754385965 x 100 = -91.56%