Generally, the formula to fit measure values ranging in different positive intervals within the same bar width is (BarWidth*MeasureValue/MeasureMaximum). Apply that to your case and all should be fine. As for the division by 0 thingy, not sure about the logical validity of your formula (see above for its general form), but using 0.000001 instead of 0.00 should avoid the error, since Rainmeter typically uses only the first 5 decimals in such evaluations.
Statistics: Posted by Yincognito — 3 minutes ago