-35.98% is the change from 970 to 621
Calculation steps:
[( 621 - 970 ) ÷ 970] x 100 = -35.98%
Formula
Percentage change = [(621 - 970) / 970] x 100
Subtract the new number by the original number
621 - 970 = -349
-349 ÷ 970 = -0.3597938144329897
-0.3597938144329897 x 100 = -35.98%