The fashion accessories buyer is planning their cold weather scarf buy. The buyer is planning to buy $3,600$ scarves with a retail of $$59\mathrm{.}00$ and the markup plan is $72\mathrm{.}5\%.$The buyer has already purchased $2,000$ units at a cost of $$19\mathrm{.}50$ for each scarf.a$.$ What is the maximum total cost for the balance of the scarf purchase?