9.05% is the change from 210 to 229
Calculation steps:
[( 229 - 210 ) ÷ 210] x 100 = 9.05%
Formula
Percentage change = [(229 - 210) / 210] x 100
Subtract the new number by the original number
229 - 210 = 19
19 ÷ 210 = 0.09047619047619047
0.09047619047619047 x 100 = 9.05%