39.45% is the change from 218 to 304
Calculation steps:
[( 304 - 218 ) ÷ 218] x 100 = 39.45%
Formula
Percentage change = [(304 - 218) / 218] x 100
Subtract the new number by the original number
304 - 218 = 86
86 ÷ 218 = 0.3944954128440367
0.3944954128440367 x 100 = 39.45%