68.57% is the change from 210 to 354
Calculation steps:
[( 354 - 210 ) ÷ 210] x 100 = 68.57%
Formula
Percentage change = [(354 - 210) / 210] x 100
Subtract the new number by the original number
354 - 210 = 144
144 ÷ 210 = 0.6857142857142857
0.6857142857142857 x 100 = 68.57%