63.34% is the change from 341 to 557
Calculation steps:
[( 557 - 341 ) ÷ 341] x 100 = 63.34%
Formula
Percentage change = [(557 - 341) / 341] x 100
Subtract the new number by the original number
557 - 341 = 216
216 ÷ 341 = 0.6334310850439883
0.6334310850439883 x 100 = 63.34%