-37.47% is the change from 990 to 619
Calculation steps:
[( 619 - 990 ) ÷ 990] x 100 = -37.47%
Formula
Percentage change = [(619 - 990) / 990] x 100
Subtract the new number by the original number
619 - 990 = -371
-371 ÷ 990 = -0.3747474747474748
-0.3747474747474748 x 100 = -37.47%