57.34% is the change from 218 to 343
Calculation steps:
[( 343 - 218 ) ÷ 218] x 100 = 57.34%
Formula
Percentage change = [(343 - 218) / 218] x 100
Subtract the new number by the original number
343 - 218 = 125
125 ÷ 218 = 0.573394495412844
0.573394495412844 x 100 = 57.34%