-34.97% is the change from 955 to 621
Calculation steps:
[( 621 - 955 ) ÷ 955] x 100 = -34.97%
Formula
Percentage change = [(621 - 955) / 955] x 100
Subtract the new number by the original number
621 - 955 = -334
-334 ÷ 955 = -0.34973821989528797
-0.34973821989528797 x 100 = -34.97%