45.27% is the change from 349 to 507
Calculation steps:
[( 507 - 349 ) ÷ 349] x 100 = 45.27%
Formula
Percentage change = [(507 - 349) / 349] x 100
Subtract the new number by the original number
507 - 349 = 158
158 ÷ 349 = 0.45272206303724927
0.45272206303724927 x 100 = 45.27%