-46.39% is the change from 970 to 520
Calculation steps:
[( 520 - 970 ) ÷ 970] x 100 = -46.39%
Formula
Percentage change = [(520 - 970) / 970] x 100
Subtract the new number by the original number
520 - 970 = -450
-450 ÷ 970 = -0.4639175257731959
-0.4639175257731959 x 100 = -46.39%