Answer: The difference in daily profit by selling white bread instead of speciality bread is $22.
Daily Profit from selling white bread:
Selling Price per loaf   $3 .0
Cost per loaf          $1.5
Profit per loaf        [tex]1.5 ( 3.0 - 1.5)[/tex]
No. of units sold per day  52
Profit per day        [tex]52 * 1.5 = 78[/tex]   Â
Daily Profit from selling specialty bread:
Selling Price per loaf   $4.50
Cost per loaf          $2.50
Profit per loaf        [tex]2 ( 4.5 - 2.5)[/tex]
No. of units sold per day  28
Profit per day        [tex]28 * 2 = 56[/tex]   Â
Hence the difference in daily profit is [tex]78 - 56 =22[/tex]