I am currently using a price calculator - although it's really not a calculator; I have to enter every price manually. Currently, it works in half inch increments.
I need it to do two things that it doesn't do currently:
1) Allow the customer to enter a dimension in 1/4 inch increments (1/8 would be even better, but I'm not requesting a miracle)
2) Make the result automatically round up to the nearest 1/2 inch