96.5% is the change from 343 to 674
Calculation steps:
[( 674 - 343 ) ÷ 343] x 100 = 96.5%
Formula
Percentage change = [(674 - 343) / 343] x 100
Subtract the new number by the original number
674 - 343 = 331
331 ÷ 343 = 0.9650145772594753
0.9650145772594753 x 100 = 96.5%