Near to be perfect
Great app with neat GUI of great help for the common discussions of margin/markup. It would be perfect if it would allow to change a value and recalculate without having to imput all values. As an example: - I enter 100 as cost and 35% as markup: this gives 25.9 margin. - I press a "recalculate" and let me chose what of the 2 values I erase and allow me to enter for example Margin 56% (keeping cost) and calculate with new values. - As an alternative a memory funtion can work as copy&paste can not be used in non imput fields.