Can you please tell me what I have here wrong and which steps do I need to correct and fix it ?

It's a project from Accouting class and I am stuck with very bad grade for this exercise for 2.85/15 points.

Thanks so much and have a great day

Several years after reengineering its production process, Dettling Corporation hired a new controller, Alana Metzgar. She developed an ABC system very similar to the one used by Dettling's chief rival. Part of the reason Metzgar developed the ABC system was because Dettling's profits had been declining, even though the company had shifted its product mix toward the product that had appeared most profitable under the old system. Before adopting the new ABC system, the company had used a plantwide overhead rate based on direct labor hours that was developed years ago. For the upcoming year, Dettling's budgeted ABC manufacturing overhead allocation rates are as follows: The number of parts is now a feasible allocation base because Dettling recently installed a plantwide computer system. Dettling produces two wheel models: Standard and Deluxe. Budgeted data for the upcoming year are as follows: 1. Compute the total budgeted manufacturing overhead cost for the upcoming year. (Always use cell references and formulas where appropriate to receive full credit. If you copy/paste from the Instructions tab or if you type the numbers in, you will be marked wrong.) 2. Compute the manufacturing overhead cost per wheel of each model using ABC. (Always use cell references and formulas where appropriate to receive full credit. If you copy/paste from the Instructions tab or if you type the numbers in, you will be marked wrong.) 3. Compute the company's traditional plantwide overhead rate. (Always use cell references and formulas where appropriate to receive full credit. If you copy/paste from the Instructions tab or if you type the numbers in, you will be marked wrong.)