62.87% is the change from 342 to 557
Calculation steps:
[( 557 - 342 ) ÷ 342] x 100 = 62.87%
Formula
Percentage change = [(557 - 342) / 342] x 100
Subtract the new number by the original number
557 - 342 = 215
215 ÷ 342 = 0.6286549707602339
0.6286549707602339 x 100 = 62.87%