-74.23% is the change from 970 to 250
Calculation steps:
[( 250 - 970 ) ÷ 970] x 100 = -74.23%
Formula
Percentage change = [(250 - 970) / 970] x 100
Subtract the new number by the original number
250 - 970 = -720
-720 ÷ 970 = -0.7422680412371134
-0.7422680412371134 x 100 = -74.23%