-68.35% is the change from 970 to 307
Calculation steps:
[( 307 - 970 ) ÷ 970] x 100 = -68.35%
Formula
Percentage change = [(307 - 970) / 970] x 100
Subtract the new number by the original number
307 - 970 = -663
-663 ÷ 970 = -0.6835051546391753
-0.6835051546391753 x 100 = -68.35%