10 1/5
really hopes this helped you with what you were solving
2 boxes for $6.00 5 Bars each is 10 bars for $6.00 or $3.00 for 5 bars
so $6.00 divided by 10 =.60 or 60 cents per bar
12 bars for $7.44 is $7.44 divided by 12 =.62 or 62 cents per bar
so the difference between 60 cents and 62 cents is
2 cent Difference
12%... (3×4)/(25×4) = 12/100... 12/100 = .12 which is 12%