(1) There may be a provision as follows: "After the loss-of-time benefit of this policy has been payable for ninety (90) days, such benefit will be adjusted, as provided below, if the total amount of unadjusted loss-of-time benefits provided in all valid loss-of-time coverage upon the insured should exceed -- % of the insured's earned income; provided, however, that if the information contained in the application discloses that the total amount of loss-of-time benefits under this policy and under all other valid loss-of-time coverage expected to be effective upon the insured in accordance with the application for this policy exceeded -- % of the insured's earned income at the time of such application, such higher percentage will be used in the place of -- %. Such adjusted loss-of-time benefit under this policy for any month shall be only such proportion of the loss-of-time benefit otherwise payable under this policy as:
(a) The product of the insured's earned income and -- % (or, if higher, the alternative percentage described at the end of the first sentence of this provision) bears to(b) The total amount of loss-of-time benefits payable for such month under this policy and all other valid loss-of-time coverage on the insured (without giving effect of the overinsurance provision in this or any other coverage) less in both paragraphs (a) and (b) of this subsection any amount of loss-of-time benefits payable under other valid loss-of-time coverage which does not contain an 'overinsurance provision.' In making such computation, all benefits and earnings shall be converted to a consistent (insert 'weekly' if the loss-of-time benefit of this policy is payable weekly, 'monthly' if such benefit is payable monthly, etc.) basis. If the numerator of the foregoing ratio is zero (0) or is negative, no benefit shall be payable under this policy. In no event shall this provision 1. Operate to reduce the total combined amount of loss-of-time benefits for such month payable under this policy and all other valid loss-of-time coverage below the lesser of three hundred dollars ($300) and the total combined amount of loss-of-time benefits determined without giving effect to any 'overinsurance provision' nor2. Operate to increase the amount of benefits payable under this policy above the amount which would have been paid in the absence of this provision, nor3. Take into account or operate to reduce any benefit other than the loss-of-time benefit.(c) For purposes of this provision: 1. 'Earned income,' except where otherwise specified, means the greater of the monthly earnings of the insured at the time disability commences and his or her average monthly earnings for a period of two (2) years immediately preceding the commencement of such disability, and shall not include any investment income or any other income not derived from the insured's vocational activities.2. 'Overinsurance provision' shall include this provision and any other provision with respect to any loss-of-time coverage which may have the effect of reducing an insurer's liability if the total amount of loss-of-time benefits under all coverage exceeds a stated relationship to the insured's earnings."