64.96% is the change from 508 to 838
Calculation steps:
[( 838 - 508 ) ÷ 508] x 100 = 64.96%
Formula
Percentage change = [(838 - 508) / 508] x 100
Subtract the new number by the original number
838 - 508 = 330
330 ÷ 508 = 0.6496062992125984
0.6496062992125984 x 100 = 64.96%