6.59% is the change from 668 to 712
Calculation steps:
[( 712 - 668 ) ÷ 668] x 100 = 6.59%
Formula
Percentage change = [(712 - 668) / 668] x 100
Subtract the new number by the original number
712 - 668 = 44
44 ÷ 668 = 0.0658682634730539
0.0658682634730539 x 100 = 6.59%