-91.38% is the change from 928 to 80
Calculation steps:
[( 80 - 928 ) ÷ 928] x 100 = -91.38%
Formula
Percentage change = [(80 - 928) / 928] x 100
Subtract the new number by the original number
80 - 928 = -848
-848 ÷ 928 = -0.9137931034482759
-0.9137931034482759 x 100 = -91.38%