42.66% is the change from 218 to 311
Calculation steps:
[( 311 - 218 ) ÷ 218] x 100 = 42.66%
Formula
Percentage change = [(311 - 218) / 218] x 100
Subtract the new number by the original number
311 - 218 = 93
93 ÷ 218 = 0.42660550458715596
0.42660550458715596 x 100 = 42.66%