When a contractor purchases materials, many times he is offered a deduction in the selling price of the merchandise, or a percentage off the invoice price in exchange for payment under agreed upon terms. Then the term 2/10 prox. net 30 means _______.

When a contractor purchases materials, many times he is offered a deduction in the selling price of the merchandise, or a percentage off the invoice price in exchange for payment under agreed upon terms. Then the term 2/10 prox. net 30 means _______.