Comparable quantities / Transparent arithmetic
Compare the amount behind the price.
Enter a labelled amount, container count and delivered cost. Keep mg, IU and mL separate, and compare the same material and formulation.
Price per entered unit
Before comparing two results
Confirm that identity, chemical form and units match. A cheaper price per mg of a different material is not a like-for-like saving. For blends, total mg hides the individual component quantities.