-10.89% is the change from 615 to 548
Calculation steps:
[( 548 - 615 ) ÷ 615] x 100 = -10.89%
Formula
Percentage change = [(548 - 615) / 615] x 100
Subtract the new number by the original number
548 - 615 = -67
-67 ÷ 615 = -0.10894308943089431
-0.10894308943089431 x 100 = -10.89%