78.1% is the change from 347 to 618
Calculation steps:
[( 618 - 347 ) ÷ 347] x 100 = 78.1%
Formula
Percentage change = [(618 - 347) / 347] x 100
Subtract the new number by the original number
618 - 347 = 271
271 ÷ 347 = 0.7809798270893372
0.7809798270893372 x 100 = 78.1%