-91.87% is the change from 996 to 81
Calculation steps:
[( 81 - 996 ) ÷ 996] x 100 = -91.87%
Formula
Percentage change = [(81 - 996) / 996] x 100
Subtract the new number by the original number
81 - 996 = -915
-915 ÷ 996 = -0.9186746987951807
-0.9186746987951807 x 100 = -91.87%