79.36% is the change from 344 to 617
Calculation steps:
[( 617 - 344 ) ÷ 344] x 100 = 79.36%
Formula
Percentage change = [(617 - 344) / 344] x 100
Subtract the new number by the original number
617 - 344 = 273
273 ÷ 344 = 0.7936046511627907
0.7936046511627907 x 100 = 79.36%