What are the steps in obtaining these answers? I'm not following what formulas were used. Any help is greatly apperciated.

A recent surge in demand has convinced HeliMax's production team that they need to boost their production capacity. The top management set aside $5,000 that they can invest in upscaling the throughput of the process. They would like to make the biggest throughput improvement possible with that money.

The table's last column shows how much it costs to cut 5 seconds in the cycle time for each workstation. You can only reduce cycle times by multiples of 5 seconds. For instance, for workstation #2, you can invest $500 to cut 5 seconds, $1,000 to cut 10 seconds and so on...... However, you cannot cut only 2 seconds at a prorated cost of $200. You must spend the whole $500.

f. Increase throughput:

What would your total investment be to upgrade the production line of HeliMax, Inc.? For full credit, highlight the sequence of steps you followed to come to that total investment.

What would be the upgraded throughput rate of the production line in units/hours?

Previously answered question:

Choose any one option from below as per your choice : 1 or 2 1) Total investment = $5,000 Production rate = 419 units per hour New production time = 515 sec Total reduction in time 120 sec with $5,000: insert UHF receiver time reduced by 60 sec = 10012 = $ 1,200. Install battery time reduced by 50 sec = 30010= $ 3,000. Assemble frame time reduced by 10 sec = 4002 =$800. 2) Total investment = $5,000 Production rate = 392 units per hour. IF YOU WANT RECUDTION IN ALL THE PROCESS THEN : new total time 550 sec, redution in time = 85 sec