100% is the change from 417 to 834
Calculation steps:
[( 834 - 417 ) ÷ 417] x 100 = 100%
Formula
Percentage change = [(834 - 417) / 417] x 100
Subtract the new number by the original number
834 - 417 = 417
417 ÷ 417 = 1
1 x 100 = 100%
Example