-70.41% is the change from 970 to 287
Calculation steps:
[( 287 - 970 ) ÷ 970] x 100 = -70.41%
Formula
Percentage change = [(287 - 970) / 970] x 100
Subtract the new number by the original number
287 - 970 = -683
-683 ÷ 970 = -0.7041237113402062
-0.7041237113402062 x 100 = -70.41%