39.19% is the change from 615 to 856
Calculation steps:
[( 856 - 615 ) ÷ 615] x 100 = 39.19%
Formula
Percentage change = [(856 - 615) / 615] x 100
Subtract the new number by the original number
856 - 615 = 241
241 ÷ 615 = 0.39186991869918697
0.39186991869918697 x 100 = 39.19%