If NexGen Innovations has $$9\mathrm{.}89$m cash, $$28\mathrm{.}94$m accounts receivable, $$173\mathrm{.}56$m inventory, $$1000$m in PP&E$,$ $$46\mathrm{.}61$m short$-$term debt, $$19\mathrm{.}80$m accounts payable and $$28\mathrm{.}94$m accrued expenses, what's the company's net working capital?