48900% is the change from 1 to 490
Calculation steps:
[( 490 - 1 ) ÷ 1] x 100 = 48900%
Formula
Percentage change = [(490 - 1) / 1] x 100
Subtract the new number by the original number
490 - 1 = 489
489 ÷ 1 = 489
489 x 100 = 48900%
Example