math
posted by running.from.myself .
The cost of a X chocolate bar is $3.50. The cost of a similar Y bar is $3.20.
(a) Find the percentage saving in buying a Y bar instead of the X bar.
(b) Find the percentage loss in buying a X bar instead of the Y bar.
Please help...........

There's a $0.30 difference.
a.
0.3 / 3.5 = ?
Multiply your decimal answer by 100 to find the percent.
b.
0.3 / 3.2 = ? 
(a) 0.3/3.5 *100 = 8.5714 %
(b) 0.3/3.2 * 100 = 9.375 %
are these correct 
Yes.