I have a batch of red I mixed last year and I don't need it anymore. I do need the orange. Pretty simple -- all ingredients I need for the orange are in my premixed batch (and, more important, none that I don't need)...
...so how much of all the ingredients do I need to make my red into an orange.
It's only about $5 worth of chemicals.....but it will be put on about $5000 worth of pots! (can't much afford to make a mistake -- that's why I'd like the double-check)