343.23% is the change from 155 to 687
Calculation steps:
[( 687 - 155 ) ÷ 155] x 100 = 343.23%
Formula
Percentage change = [(687 - 155) / 155] x 100
Subtract the new number by the original number
687 - 155 = 532
532 ÷ 155 = 3.432258064516129
3.432258064516129 x 100 = 343.23%