I have a problem and need some ideas. I have an app that lets the user enter in weights in different units and I need a way to store the data so the total weight gets taken in the end (or at least gets close)
One screen the user can enter 700lbs.
Another screen the user can use that 700lbs but enters it in Metric Tons (0.317). The loss of precision is killing me because the conversion back to lbs is 698.865.
I need the back end to "know" they really mean 700lbs. Are there any cool techniques that I'm not thinking of?