81.23% is the change from 341 to 618
Calculation steps:
[( 618 - 341 ) ÷ 341] x 100 = 81.23%
Formula
Percentage change = [(618 - 341) / 341] x 100
Subtract the new number by the original number
618 - 341 = 277
277 ÷ 341 = 0.8123167155425219
0.8123167155425219 x 100 = 81.23%