-91.49% is the change from 940 to 80
Calculation steps:
[( 80 - 940 ) ÷ 940] x 100 = -91.49%
Formula
Percentage change = [(80 - 940) / 940] x 100
Subtract the new number by the original number
80 - 940 = -860
-860 ÷ 940 = -0.9148936170212766
-0.9148936170212766 x 100 = -91.49%