13.46% is the change from 312 to 354
Calculation steps:
[( 354 - 312 ) ÷ 312] x 100 = 13.46%
Formula
Percentage change = [(354 - 312) / 312] x 100
Subtract the new number by the original number
354 - 312 = 42
42 ÷ 312 = 0.1346153846153846
0.1346153846153846 x 100 = 13.46%