100% is the change from 459 to 918
Calculation steps:
[( 918 - 459 ) ÷ 459] x 100 = 100%
Formula
Percentage change = [(918 - 459) / 459] x 100
Subtract the new number by the original number
918 - 459 = 459
459 ÷ 459 = 1
1 x 100 = 100%
Example