151.6% is the change from 343 to 863
Calculation steps:
[( 863 - 343 ) ÷ 343] x 100 = 151.6%
Formula
Percentage change = [(863 - 343) / 343] x 100
Subtract the new number by the original number
863 - 343 = 520
520 ÷ 343 = 1.5160349854227406
1.5160349854227406 x 100 = 151.6%