2040% is the change from 10 to 214
Calculation steps:
[( 214 - 10 ) ÷ 10] x 100 = 2040%
Formula
Percentage change = [(214 - 10) / 10] x 100
Subtract the new number by the original number
214 - 10 = 204
204 ÷ 10 = 20.4
20.4 x 100 = 2040%
Example