62.82% is the change from 312 to 508
Calculation steps:
[( 508 - 312 ) ÷ 312] x 100 = 62.82%
Formula
Percentage change = [(508 - 312) / 312] x 100
Subtract the new number by the original number
508 - 312 = 196
196 ÷ 312 = 0.6282051282051282
0.6282051282051282 x 100 = 62.82%