38.78% is the change from 312 to 433
Calculation steps:
[( 433 - 312 ) ÷ 312] x 100 = 38.78%
Formula
Percentage change = [(433 - 312) / 312] x 100
Subtract the new number by the original number
433 - 312 = 121
121 ÷ 312 = 0.38782051282051283
0.38782051282051283 x 100 = 38.78%