20400% is the change from 2 to 410
Calculation steps:
[( 410 - 2 ) ÷ 2] x 100 = 20400%
Formula
Percentage change = [(410 - 2) / 2] x 100
Subtract the new number by the original number
410 - 2 = 408
408 ÷ 2 = 204
204 x 100 = 20400%
Example