2.38% is the change from 210 to 215
Calculation steps:
[( 215 - 210 ) ÷ 210] x 100 = 2.38%
Formula
Percentage change = [(215 - 210) / 210] x 100
Subtract the new number by the original number
215 - 210 = 5
5 ÷ 210 = 0.023809523809523808
0.023809523809523808 x 100 = 2.38%