In 2018, Adonis Industries changed its method of valuing inventory from the average cost method to the FIFO method. At December 31, 2017, Adoniss inventories were $48.4 million (average cost). Adoniss records indicated that the inventories would have totaled $65.6 million at December 31, 2017, if determined on a FIFO basis. Ignoring income taxes, how will the journal entry Adonis uses to record the adjustment effect beginning retained earnings in 2018? Note: please use a negative sign if the adjustment reduces retained earnings.