49.31% is the change from 507 to 757
Calculation steps:
[( 757 - 507 ) ÷ 507] x 100 = 49.31%
Formula
Percentage change = [(757 - 507) / 507] x 100
Subtract the new number by the original number
757 - 507 = 250
250 ÷ 507 = 0.4930966469428008
0.4930966469428008 x 100 = 49.31%