50% is the change from 508 to 762
Calculation steps:
[( 762 - 508 ) ÷ 508] x 100 = 50%
Formula
Percentage change = [(762 - 508) / 508] x 100
Subtract the new number by the original number
762 - 508 = 254
254 ÷ 508 = 0.5
0.5 x 100 = 50%
Example