The following information comes from the balance sheet of ACME Enterprises. Total equity equals $$150,000,$ preferred stock has a value of $$100,000$ and long$-$term debt totals $$250,000.$ For purposes of estimating the firm's WACC, what are the weights of equity, preferred stock, and debt?

the answer is $30\%,20\%,$ and $50\%.$ Please explain why it is $30\%,20\%,$ and $50\%$