Bally Manufacturing sent Intel Corporation an invoice for machinery with a $$13,200$ list price. Bally dated the invoice July $31$ with $\frac{5}{10}$

EOM terms. Intel receives a $40\%$ trade discount. Intel pays the invoice on August $13.$ On August $09,$ Intel Corporation returns $$900$ of

the machinery due to defects. What does Intel pay Bally on August $13?$

Payable amount to Bally