The amount of the equity loan shall not exceed ninety percent of the owner's equity in the project, as determined by the Commissioner. Notwithstanding the above, the equity loan shall not exceed an amount which, when added to the existing indebtedness on the property, can be supported by 90 percent of the projected net operating income of the project, as determined by the Commissioner. The Commissioner, in making a determination regarding the amount of an equity loan and sums available to service said loan, shall take into account the fact that the project's income may increase within the limits established by §248.233(d) of this chapter.