43.12% is the change from 218 to 312
Calculation steps:
[( 312 - 218 ) ÷ 218] x 100 = 43.12%
Formula
Percentage change = [(312 - 218) / 218] x 100
Subtract the new number by the original number
312 - 218 = 94
94 ÷ 218 = 0.43119266055045874
0.43119266055045874 x 100 = 43.12%