-34.08% is the change from 942 to 621
Calculation steps:
[( 621 - 942 ) ÷ 942] x 100 = -34.08%
Formula
Percentage change = [(621 - 942) / 942] x 100
Subtract the new number by the original number
621 - 942 = -321
-321 ÷ 942 = -0.34076433121019106
-0.34076433121019106 x 100 = -34.08%