-18.56% is the change from 970 to 790
Calculation steps:
[( 790 - 970 ) ÷ 970] x 100 = -18.56%
Formula
Percentage change = [(790 - 970) / 970] x 100
Subtract the new number by the original number
790 - 970 = -180
-180 ÷ 970 = -0.18556701030927836
-0.18556701030927836 x 100 = -18.56%