100% is the change from 355 to 710
Calculation steps:
[( 710 - 355 ) ÷ 355] x 100 = 100%
Formula
Percentage change = [(710 - 355) / 355] x 100
Subtract the new number by the original number
710 - 355 = 355
355 ÷ 355 = 1
1 x 100 = 100%
Example