2.86% is the change from 210 to 216
Calculation steps:
[( 216 - 210 ) ÷ 210] x 100 = 2.86%
Formula
Percentage change = [(216 - 210) / 210] x 100
Subtract the new number by the original number
216 - 210 = 6
6 ÷ 210 = 0.02857142857142857
0.02857142857142857 x 100 = 2.86%