102.86% is the change from 210 to 426
Calculation steps:
[( 426 - 210 ) ÷ 210] x 100 = 102.86%
Formula
Percentage change = [(426 - 210) / 210] x 100
Subtract the new number by the original number
426 - 210 = 216
216 ÷ 210 = 1.0285714285714285
1.0285714285714285 x 100 = 102.86%