79.59% is the change from 343 to 616
Calculation steps:
[( 616 - 343 ) ÷ 343] x 100 = 79.59%
Formula
Percentage change = [(616 - 343) / 343] x 100
Subtract the new number by the original number
616 - 343 = 273
273 ÷ 343 = 0.7959183673469388
0.7959183673469388 x 100 = 79.59%