39.74% is the change from 312 to 436
Calculation steps:
[( 436 - 312 ) ÷ 312] x 100 = 39.74%
Formula
Percentage change = [(436 - 312) / 312] x 100
Subtract the new number by the original number
436 - 312 = 124
124 ÷ 312 = 0.3974358974358974
0.3974358974358974 x 100 = 39.74%