42.95% is the change from 312 to 446
Calculation steps:
[( 446 - 312 ) ÷ 312] x 100 = 42.95%
Formula
Percentage change = [(446 - 312) / 312] x 100
Subtract the new number by the original number
446 - 312 = 134
134 ÷ 312 = 0.42948717948717946
0.42948717948717946 x 100 = 42.95%