51.24% is the change from 603 to 912
Calculation steps:
[( 912 - 603 ) ÷ 603] x 100 = 51.24%
Formula
Percentage change = [(912 - 603) / 603] x 100
Subtract the new number by the original number
912 - 603 = 309
309 ÷ 603 = 0.5124378109452736
0.5124378109452736 x 100 = 51.24%