45.62% is the change from 217 to 316
Calculation steps:
[( 316 - 217 ) ÷ 217] x 100 = 45.62%
Formula
Percentage change = [(316 - 217) / 217] x 100
Subtract the new number by the original number
316 - 217 = 99
99 ÷ 217 = 0.45622119815668205
0.45622119815668205 x 100 = 45.62%