35.24% is the change from 210 to 284
Calculation steps:
[( 284 - 210 ) ÷ 210] x 100 = 35.24%
Formula
Percentage change = [(284 - 210) / 210] x 100
Subtract the new number by the original number
284 - 210 = 74
74 ÷ 210 = 0.3523809523809524
0.3523809523809524 x 100 = 35.24%