77.81% is the change from 347 to 617
Calculation steps:
[( 617 - 347 ) ÷ 347] x 100 = 77.81%
Formula
Percentage change = [(617 - 347) / 347] x 100
Subtract the new number by the original number
617 - 347 = 270
270 ÷ 347 = 0.7780979827089337
0.7780979827089337 x 100 = 77.81%