35.05% is the change from 331 to 447
Calculation steps:
[( 447 - 331 ) ÷ 331] x 100 = 35.05%
Formula
Percentage change = [(447 - 331) / 331] x 100
Subtract the new number by the original number
447 - 331 = 116
116 ÷ 331 = 0.3504531722054381
0.3504531722054381 x 100 = 35.05%