47.32% is the change from 615 to 906
Calculation steps:
[( 906 - 615 ) ÷ 615] x 100 = 47.32%
Formula
Percentage change = [(906 - 615) / 615] x 100
Subtract the new number by the original number
906 - 615 = 291
291 ÷ 615 = 0.47317073170731705
0.47317073170731705 x 100 = 47.32%