Football Fan Apparel

I have no reference in this equation, so someone tell me if this is too low, too high... etc.

premium 9 year vinyl is about 70.00 shipped to me for 24 inch x 10 yards
(+3.00) for colors.

I rounded 70.00 up to 75.00 because i can.

75.00 / 10 =7.5

Application paper is about 65.00 shipped to me for 24 inch x 100 yards
rounded to 70.00

7.5 + .7 = 8.2

8.2 + .50 a yard for weeding = 8.7

rounded to 8.75

8.75 x 2 for profit = $17.5 per yard

2 yard minimum

Weeded, taped, and cut.

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I'm primarily just selling these to local shops (skate shops, tattoo shop, hair salon, garages, etc...)

My real question is, is this too cheap? Could I make more money off of this small operation?

I have a Roland gx 24 with adobe cs2 and can easily pump out 2 yards of stickers in probably under a half an hour.

Just looking for reference, or a better way to charge people.

thanks for reading