-37.56% is the change from 615 to 384
Calculation steps:
[( 384 - 615 ) ÷ 615] x 100 = -37.56%
Formula
Percentage change = [(384 - 615) / 615] x 100
Subtract the new number by the original number
384 - 615 = -231
-231 ÷ 615 = -0.375609756097561
-0.375609756097561 x 100 = -37.56%