-44.39% is the change from 615 to 342
Calculation steps:
[( 342 - 615 ) ÷ 615] x 100 = -44.39%
Formula
Percentage change = [(342 - 615) / 615] x 100
Subtract the new number by the original number
342 - 615 = -273
-273 ÷ 615 = -0.44390243902439025
-0.44390243902439025 x 100 = -44.39%