67.14% is the change from 210 to 351
Calculation steps:
[( 351 - 210 ) ÷ 210] x 100 = 67.14%
Formula
Percentage change = [(351 - 210) / 210] x 100
Subtract the new number by the original number
351 - 210 = 141
141 ÷ 210 = 0.6714285714285714
0.6714285714285714 x 100 = 67.14%