-90.68% is the change from 912 to 85
Calculation steps:
[( 85 - 912 ) ÷ 912] x 100 = -90.68%
Formula
Percentage change = [(85 - 912) / 912] x 100
Subtract the new number by the original number
85 - 912 = -827
-827 ÷ 912 = -0.9067982456140351
-0.9067982456140351 x 100 = -90.68%