Im trying to add a "$" in front of the numbers that are calculated below; the only successful one that was able to add the "$" was the Limit since it doesn't have any mathematical conflicts with the total, etc. How would I add the dollar sign in Cost, Tip, Total, Average. I tried to add it like i did with the limit but it gave me a syntax error. Please help me figure this out!

```
Percent=20
function calc {
echo -n "What is the total cost in cents?";
read cents
guests=5
Limit='$'$(awk "BEGIN{printf \"%.2f\n\", guests * 10 "); #added successfully
Cost=$(echo "scale =2; $cents/100" | bc); #need to add $
Percent=$(echo "scale =2; $Percent / 100" | bc);
Tip=$(echo "scale =2; $Cost * $Percent" | bc); #need to add $
Total=$(echo "scale =2; $Cost + $Tip" | bc); #need to add $
Average=$(echo "scale =2; $Total/guests" | bc); #need to add $
}
```

I have a code similar posted but it isn't the same since the one before hand isn't helping me with the "$" issue that i'm having now

You cannot add the `$`

to variables while you still use the variables to calculate something. Its working for `Limit`

because `Limit`

isn't used in the following calculations. Execute the program "by hand" and see what happens:

What happens:

```
Cost='$12.00' # value computed by hand
Tip='$1.00' # value computed by hand
Total=$(echo 'scale=2; $12.00 + $1.00' | bc); # filled in values of variables
```

`bc`

doesn't know how to handle the `$`

. Complete all calculations without the `$`

and then (at the very end) add the `$`

.

```
# ongoing calculations
Cost='$'"$Cost"
Tip='$'"$Tip"
Total='$'"$Total"
Average='$'"$Average"
```