68.71% is the change from 342 to 577
Calculation steps:
[( 577 - 342 ) ÷ 342] x 100 = 68.71%
Formula
Percentage change = [(577 - 342) / 342] x 100
Subtract the new number by the original number
577 - 342 = 235
235 ÷ 342 = 0.6871345029239766
0.6871345029239766 x 100 = 68.71%