solve it by steps

A rough rule of thumb for the chemical industry is that $1 of annual sales requires $2 of fixed capital investment. In a chemical processing plant where this rule applies, the total capital investment is $2,500,000, and the working capital is 20 percent of the total capital investment. The annual total product cost amounts to $1,500,000. If the income tax rates on gross earnings total 35 percent, determine the following: i. Percent of total capital investment returned annually as gross earnings ii. Percent of total capital investment returned annually as net profit