-33.19% is the change from 928 to 620
Calculation steps:
[( 620 - 928 ) ÷ 928] x 100 = -33.19%
Formula
Percentage change = [(620 - 928) / 928] x 100
Subtract the new number by the original number
620 - 928 = -308
-308 ÷ 928 = -0.33189655172413796
-0.33189655172413796 x 100 = -33.19%