50.71% is the change from 211 to 318
Calculation steps:
[( 318 - 211 ) ÷ 211] x 100 = 50.71%
Formula
Percentage change = [(318 - 211) / 211] x 100
Subtract the new number by the original number
318 - 211 = 107
107 ÷ 211 = 0.5071090047393365
0.5071090047393365 x 100 = 50.71%