Hi! I need help with this exercise... how I can resolve this exercise step by step. thanks!

1. Given the following inventory information, perform an ABC analysis for the ten items shown. Fill in the blank spaces in the charts below. (Round your calculations to 2 decimal places.) Please show all of your calculations. % of Total % of total Unit Annual Annual Item Dollar Annual $ Inventory Annual $ No. Cost ($) Usage Usage Usage Class usage by class T604 65.00 400 Class A J125 5.40 4,600 items Y321 31.50 600 Class B Y633 3.50 3,500 items X221 1.65 5,500 Class C M455 5.25 1,500 items L242 1.05 1,400 K966 0.29 3,800 B886 6.43 118 W985 0.73 810 Totals: |XXXXXX|XXXXXXX XXXXXXX 2. Assume you own a Tim Horton's cafe and bake shop. a. Give at least two examples of each basic type of inventory/service (i.e. Raw Materials, Work-in-process, Finished Goods, Maintenance, Repair and Operating Supplies)