How to Test: 

1. Choose a date like Mon / Tues / Wed 

2. Enter stock levels in sequence to simulate trends:

Downward Trend Test:

1. Start: 20,000 units
2. Next: 14,000 units
3. Last: 7,000 units

Upward Trend Test:

1. Start: 14,000 units
2. Next: 25,000 units
3. Last: 36,000 units