The first (Pct1) of 2 percentages for the line discount. The combined percentages for the line discount are calculated as follows:

(Amount * ((100-Pct1) / 100) * ((100-Pct2) / 100))

If, for example, you subtract 10 percent from 100 percent, you get 90 percent.

If you then subtract 10 percent from 90 percent, you get 81 percent. The total discount that is transferred to the line-discount field on the order is therefore 19 percent.