10500% is the change from 4 to 424
Calculation steps:
[( 424 - 4 ) ÷ 4] x 100 = 10500%
Formula
Percentage change = [(424 - 4) / 4] x 100
Subtract the new number by the original number
424 - 4 = 420
420 ÷ 4 = 105
105 x 100 = 10500%
Example