Custom Dual Dimensions

I deal with scale factors. Raw carbide shrinks when it is sintered. We machine tooling in the "Green" state which is like chalk and sinter it into solid carbide. We divide all hard figures by roughly .806-.810. I was wondering why I cant customize the dual dimension formula to show our division by .810 instead of 25.4. Is this possible? As of now I just use different configurations and have a hard sheet and a green sheet. I would like to only have one print with the calculations already done.

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