58.54% is the change from 615 to 975
Calculation steps:
[( 975 - 615 ) ÷ 615] x 100 = 58.54%
Formula
Percentage change = [(975 - 615) / 615] x 100
Subtract the new number by the original number
975 - 615 = 360
360 ÷ 615 = 0.5853658536585366
0.5853658536585366 x 100 = 58.54%