-91.06% is the change from 940 to 84
Calculation steps:
[( 84 - 940 ) ÷ 940] x 100 = -91.06%
Formula
Percentage change = [(84 - 940) / 940] x 100
Subtract the new number by the original number
84 - 940 = -856
-856 ÷ 940 = -0.9106382978723404
-0.9106382978723404 x 100 = -91.06%