I need a calculator function that I can use on a wordpress page that allows the customer to enter three variables..
It will then calculate the square footage of the room and compare it against the coverage chart to determine how many ounces of my product they need. It could even go as far to say.. "your job requires 18 oz... we recommend you obtain 3 8oz bottles."
Thank you for looking at my project. The link to the coverage chart is attached.