67.15% is the change from 347 to 580
Calculation steps:
[( 580 - 347 ) ÷ 347] x 100 = 67.15%
Formula
Percentage change = [(580 - 347) / 347] x 100
Subtract the new number by the original number
580 - 347 = 233
233 ÷ 347 = 0.6714697406340058
0.6714697406340058 x 100 = 67.15%