100% is the change from 351 to 702
Calculation steps:
[( 702 - 351 ) ÷ 351] x 100 = 100%
Formula
Percentage change = [(702 - 351) / 351] x 100
Subtract the new number by the original number
702 - 351 = 351
351 ÷ 351 = 1
1 x 100 = 100%
Example