4110% is the change from 10 to 421
Calculation steps:
[( 421 - 10 ) ÷ 10] x 100 = 4110%
Formula
Percentage change = [(421 - 10) / 10] x 100
Subtract the new number by the original number
421 - 10 = 411
411 ÷ 10 = 41.1
41.1 x 100 = 4110%
Example