80.17% is the change from 343 to 618
Calculation steps:
[( 618 - 343 ) ÷ 343] x 100 = 80.17%
Formula
Percentage change = [(618 - 343) / 343] x 100
Subtract the new number by the original number
618 - 343 = 275
275 ÷ 343 = 0.8017492711370262
0.8017492711370262 x 100 = 80.17%