70.83% is the change from 360 to 615
Calculation steps:
[( 615 - 360 ) ÷ 360] x 100 = 70.83%
Formula
Percentage change = [(615 - 360) / 360] x 100
Subtract the new number by the original number
615 - 360 = 255
255 ÷ 360 = 0.7083333333333334
0.7083333333333334 x 100 = 70.83%