68.1% is the change from 210 to 353
Calculation steps:
[( 353 - 210 ) ÷ 210] x 100 = 68.1%
Formula
Percentage change = [(353 - 210) / 210] x 100
Subtract the new number by the original number
353 - 210 = 143
143 ÷ 210 = 0.680952380952381
0.680952380952381 x 100 = 68.1%