50.64% is the change from 312 to 470
Calculation steps:
[( 470 - 312 ) ÷ 312] x 100 = 50.64%
Formula
Percentage change = [(470 - 312) / 312] x 100
Subtract the new number by the original number
470 - 312 = 158
158 ÷ 312 = 0.5064102564102564
0.5064102564102564 x 100 = 50.64%