-36.41% is the change from 975 to 620
Calculation steps:
[( 620 - 975 ) ÷ 975] x 100 = -36.41%
Formula
Percentage change = [(620 - 975) / 975] x 100
Subtract the new number by the original number
620 - 975 = -355
-355 ÷ 975 = -0.3641025641025641
-0.3641025641025641 x 100 = -36.41%