-42.93% is the change from 615 to 351
Calculation steps:
[( 351 - 615 ) ÷ 615] x 100 = -42.93%
Formula
Percentage change = [(351 - 615) / 615] x 100
Subtract the new number by the original number
351 - 615 = -264
-264 ÷ 615 = -0.4292682926829268
-0.4292682926829268 x 100 = -42.93%