Acme Manufacturing reports the following capital structure: long-term debt of $200; long-term leases of $300; convertible debt of $100; preferred stock $60; and common equity of $400. In its footnotes the company also reports $40 of stock options owned by its employees. Further research indicates that the market value of the long-term debt is 99% of its book value, the market value of the convertible debt is 109% of its book value (75% of this debt is debt-related with the remainder equity-related), the preferred stock is 99% of its book value, and the market value of the common equity is 235% of its book value. What should be the percentage (relative weight) of debt that should be included in WACC calculation?