-36.31% is the change from 975 to 621
Calculation steps:
[( 621 - 975 ) ÷ 975] x 100 = -36.31%
Formula
Percentage change = [(621 - 975) / 975] x 100
Subtract the new number by the original number
621 - 975 = -354
-354 ÷ 975 = -0.3630769230769231
-0.3630769230769231 x 100 = -36.31%