52.52% is the change from 615 to 938
Calculation steps:
[( 938 - 615 ) ÷ 615] x 100 = 52.52%
Formula
Percentage change = [(938 - 615) / 615] x 100
Subtract the new number by the original number
938 - 615 = 323
323 ÷ 615 = 0.5252032520325203
0.5252032520325203 x 100 = 52.52%