-91.13% is the change from 902 to 80
Calculation steps:
[( 80 - 902 ) ÷ 902] x 100 = -91.13%
Formula
Percentage change = [(80 - 902) / 902] x 100
Subtract the new number by the original number
80 - 902 = -822
-822 ÷ 902 = -0.9113082039911308
-0.9113082039911308 x 100 = -91.13%