I need help with PART B. I have completed part A and provided the correct answers in the screenshot. For part B, the boxes outlined in red are where I have entered an answer and it has been incorrect.

Oriole Snowboards sells an ultra-lightweight snowboard that is considered to be one of the best on the market. Information follows for Oriole's purchases and sales of the ultra-lightweight snowboard in October: (a) Your answer is correct. Calculate the cost of goods sold and the ending inventory using FIFO and weighted average, assuming Oriole uses a perpetual inventory system. (Round the weighted average cost per unit and final answers to 2 decimal places, e.g. 5,265.25.) What would be the ending inventory and cost of goods sold if Oriole used FIFO and weighted average in a periodic inventory system? (Round the weighted average cost per unit and final answers to 2 decimal places, eg. 5,265.25.)