-91.69% is the change from 975 to 81
Calculation steps:
[( 81 - 975 ) ÷ 975] x 100 = -91.69%
Formula
Percentage change = [(81 - 975) / 975] x 100
Subtract the new number by the original number
81 - 975 = -894
-894 ÷ 975 = -0.916923076923077
-0.916923076923077 x 100 = -91.69%