please solve it step by step.

Harley purchases components from three suppliers. Components purchased from Supplier A are priced at $4 each and used at the rate of 300,000 units per year. Components purchased from Supplier B are priced at $3 each and are used at the rate of 250,000 units per year. Components purchased from Supplier Care priced at $4 each and used at the rate of 200,000 units per year. Currently, Harley purchases a separate truckload from each supplier. As part of its JIT drive, Harley has decided to aggregate purchases from the three suppliers. The trucking company charges a fixed cost of $100 for the truck with an additional charge of $200 for each stop. Thus, if Harley asks for a pickup from only one supplier, the trucking company charges $300; from two suppliers, it charges $500; and from three suppliers, it charges $700. Calculate the total costs for both cases (ordering separately and ordering all three products jointly) and find the saving from ordering all three components jointly. Note: Total cost = Material Cost + Ordering Cost + Holding Cost Saving = Total cost of ordering jointly - Total cost of ordering independently Harley purchases components from three suppliers. Components purchased from Supplier A are priced at $4 each and used at the rate of 300,000 units per year. Components purchased from Supplier B are priced at $3 each and are used at the rate of 250,000 units per year. Components purchased from Supplier Care priced at $4 each and used at the rate of 200,000 units per year. Currently, Harley purchases a separate truckload from each supplier. As part of its JIT drive, Harley has decided to aggregate purchases from the three suppliers. The trucking company charges a fixed cost of $100 for the truck with an additional charge of $200 for each stop. Thus, if Harley asks for a pickup from only one supplier, the trucking company charges $300; from two suppliers, it charges $500; and from three suppliers, it charges $700. Calculate the total costs for both cases (ordering separately and ordering all three products jointly) and find the saving from ordering all three components jointly. Note: Total cost = Material Cost + Ordering Cost + Holding Cost Saving = Total cost of ordering jointly - Total cost of ordering independently