49.6% is the change from 506 to 757
Calculation steps:
[( 757 - 506 ) ÷ 506] x 100 = 49.6%
Formula
Percentage change = [(757 - 506) / 506] x 100
Subtract the new number by the original number
757 - 506 = 251
251 ÷ 506 = 0.49604743083003955
0.49604743083003955 x 100 = 49.6%