31.43% is the change from 210 to 276
Calculation steps:
[( 276 - 210 ) ÷ 210] x 100 = 31.43%
Formula
Percentage change = [(276 - 210) / 210] x 100
Subtract the new number by the original number
276 - 210 = 66
66 ÷ 210 = 0.3142857142857143
0.3142857142857143 x 100 = 31.43%