-91.03% is the change from 903 to 81
Calculation steps:
[( 81 - 903 ) ÷ 903] x 100 = -91.03%
Formula
Percentage change = [(81 - 903) / 903] x 100
Subtract the new number by the original number
81 - 903 = -822
-822 ÷ 903 = -0.9102990033222591
-0.9102990033222591 x 100 = -91.03%