-32.99% is the change from 970 to 650
Calculation steps:
[( 650 - 970 ) ÷ 970] x 100 = -32.99%
Formula
Percentage change = [(650 - 970) / 970] x 100
Subtract the new number by the original number
650 - 970 = -320
-320 ÷ 970 = -0.32989690721649484
-0.32989690721649484 x 100 = -32.99%