52.07% is the change from 217 to 330
Calculation steps:
[( 330 - 217 ) ÷ 217] x 100 = 52.07%
Formula
Percentage change = [(330 - 217) / 217] x 100
Subtract the new number by the original number
330 - 217 = 113
113 ÷ 217 = 0.5207373271889401
0.5207373271889401 x 100 = 52.07%