49.29% is the change from 211 to 315
Calculation steps:
[( 315 - 211 ) ÷ 211] x 100 = 49.29%
Formula
Percentage change = [(315 - 211) / 211] x 100
Subtract the new number by the original number
315 - 211 = 104
104 ÷ 211 = 0.4928909952606635
0.4928909952606635 x 100 = 49.29%