allis Company produces circuit boards in a foreign country that imposes a $15$ percent VAT. This year, Wallis manufactured $6\mathrm{.}3$ million boards at a $$2\mathrm{.}60$ material cost per unit. Wallis's labor and overhead added $$0\mathrm{.}52$ to the cost per unit. Wallis sold the boards to various customers for $$3\mathrm{.}90$ per unit for a net profit of $$0\mathrm{.}78$ per unit. How much Vat does Wallis Company Owe $?$