30.95% is the change from 210 to 275
Calculation steps:
[( 275 - 210 ) ÷ 210] x 100 = 30.95%
Formula
Percentage change = [(275 - 210) / 210] x 100
Subtract the new number by the original number
275 - 210 = 65
65 ÷ 210 = 0.30952380952380953
0.30952380952380953 x 100 = 30.95%