calculate the premium (expressed as a percentage) that the self-unloader shipowner must charge compared to the owner of a standard bulker. This premium should be evaluated for a ship that costs $60 million to build (includes an additional $12 million in vessel cost for the self-unloader) and has a daily operating cost (opex) of $8,900. The premium must provide an equivalent return on capital (ROC) and return on equity (ROE) when compared to the original values for the standard bulker