2110% is the change from 10 to 221
Calculation steps:
[( 221 - 10 ) ÷ 10] x 100 = 2110%
Formula
Percentage change = [(221 - 10) / 10] x 100
Subtract the new number by the original number
221 - 10 = 211
211 ÷ 10 = 21.1
21.1 x 100 = 2110%
Example