and shall constitute a firm order for the quantity of each Product specified therein (each, a "Firm Order"), (ii) each of months four (4) through six (6) of a given Forecast may not differ by more than twenty-five percent (25%) (whether positive or negative) from the quantity of such Product set forth in those months in the previous Forecast, and (iii) each of months seven (7) through twelve (12) of a given Forecast may not differ by more than fifty percent (50%) (whether positive or negative) from the quantity of such Product set forth in those months in the previous Forecast. For the avoidance of doubt, (1) this subsection (b) applies to Forecasts for API and Bulk Drug Product and (2) the Forecast with respect to Finished Product shall apply to the roll-up level of the Bulk Drug Product that is incorporated into the Finished Product. (c) Make to Order Purchase Orders. Manufacturer shall provide Product to Customer pursuant to Purchase Orders issued by Customer to Manufacturer, which Purchase Orders will be issued on a Product SKU-by-Product SKU basis, not to exceed one (1) Purchase Order per Product SKU per calendar month unless otherwise agreed between the Parties in advance in writing. No verbal communications or e-mail shall be construed to mean a commitment to purchase Product. Customer shall be required to order -16- Source: UPJOHN INC, 10-12G, 1/21/2020 pursuant to a Purchase Order at least the amount of Product set forth in the Firm Order for such Product in the applicable calendar month. Manufacturer shall provide to Customer such quantities of Product as may be ordered by Customer pursuant to such Purchase Orders, up to one hundred ten percent (110%) of the quantity set forth in the most recent Forecast for the applicable period. In the event that Customer