31.09% is the change from 341 to 447
Calculation steps:
[( 447 - 341 ) ÷ 341] x 100 = 31.09%
Formula
Percentage change = [(447 - 341) / 341] x 100
Subtract the new number by the original number
447 - 341 = 106
106 ÷ 341 = 0.31085043988269795
0.31085043988269795 x 100 = 31.09%