Massachusetts Burger is a national chain that, because of its success, has decided to expand. MassBurger, as it$$s also known, is currently unlevered and has assets valued at $3500000.$ Suppose the size of the assets increases by a factor of $4\mathrm{.}51($for example, if the factor is $10,$ then it means the amount of assets will be $10$ times as large$),$ with all of the expansion funds coming from debt capital.

What must the percentage fall in the assets be before all the equity is wiped out?