Every producer-distributor, distributor, and agricultural cooperative subject to license or regulation under this chapter, in making payments to producers for milk sold or delivered to such producer-distributor, distributor or cooperative, shall clearly set forth the unit price for such milk, whether determined pursuant to federal or state authority or pursuant to agreement, together with the amount of all premiums, subsidies, differentials, deductions, service fees, hauling charges, supply expenses, costs, or adjustments of any nature whatsoever, in such a manner as to fully disclose to the producer the rate, basis and manner of computing such payments.