51.43% is the change from 210 to 318
Calculation steps:
[( 318 - 210 ) ÷ 210] x 100 = 51.43%
Formula
Percentage change = [(318 - 210) / 210] x 100
Subtract the new number by the original number
318 - 210 = 108
108 ÷ 210 = 0.5142857142857142
0.5142857142857142 x 100 = 51.43%