100% is the change from 349 to 698
Calculation steps:
[( 698 - 349 ) ÷ 349] x 100 = 100%
Formula
Percentage change = [(698 - 349) / 349] x 100
Subtract the new number by the original number
698 - 349 = 349
349 ÷ 349 = 1
1 x 100 = 100%
Example