Display QTY to add to cart as a different number than 1, 2, 3, etc?

[Quilters_Store]

Is there a way with a variant or otherwise to have the QTY to add to cart show as a different number than 1, 2, 3, etc.

We sell fabric, and our units are by the 1/4 meter (.25)
We would like to have the qty box show .25 / .5 / .75 / 1 / 1.25 / 1.5 / etc. as the arrow or +/- sign is selected.

Having to communicate to the customer that 1 = .25 and 4 = 1 is just WAY too confusing for some people!

This would also need to be communicated the same way in the cart, and if the static pricing on the product page could equal the Price per Meter ( Price per unit x 4) that would be ideal!

Yes, we could just sell by the full meter, but that is not flexible enough for our customers and we don't want to force people into buying more than they need!

Any way this can be done easily?