-8.94% is the change from 615 to 560
Calculation steps:
[( 560 - 615 ) ÷ 615] x 100 = -8.94%
Formula
Percentage change = [(560 - 615) / 615] x 100
Subtract the new number by the original number
560 - 615 = -55
-55 ÷ 615 = -0.08943089430894309
-0.08943089430894309 x 100 = -8.94%