-37.56% is the change from 993 to 620
Calculation steps:
[( 620 - 993 ) ÷ 993] x 100 = -37.56%
Formula
Percentage change = [(620 - 993) / 993] x 100
Subtract the new number by the original number
620 - 993 = -373
-373 ÷ 993 = -0.3756294058408862
-0.3756294058408862 x 100 = -37.56%