57.5% is the change from 600 to 945
Calculation steps:
[( 945 - 600 ) ÷ 600] x 100 = 57.5%
Formula
Percentage change = [(945 - 600) / 600] x 100
Subtract the new number by the original number
945 - 600 = 345
345 ÷ 600 = 0.575
0.575 x 100 = 57.5%
Example