# Estimation of Working Capital Based on Operating Cycle
One method to forecast WC requirement is based on the operating cycle concept.
## What is the Operating Cycle?
The time interval between the purchase of raw materials and the collection of cash from the sale of finished goods.
### Why Important
- Helps in forecasting, controlling, and managing working capital.
- Length of the cycle is an indicator of management performance.
- The NET operating cycle = time for which the firm has to negotiate WC with bankers.
- Helps determine the accurate WC amount for continuous operations.
- Duration varies with the nature of the business.
## The Formula
$$\boxed{\text{Operating Cycle} = R + W + F + D - C}$$
Where:
| Symbol | Meaning |
|---|---|
| R | Raw Material storage period |
| W | Work-in-Progress holding period |
| F | Finished Goods storage period |
| D | Debtors collection period |
| C | Credit period availed (from suppliers) |
## Visual Flow
```
Purchase RM → Store (R) → Production (W) → FG Warehouse (F) → Sell on credit → Collect (D)
└─ Less: Credit availed (C)
= NET OPERATING CYCLE
```
## Interpretation
- A shorter cycle ⇒ less WC tied up ⇒ better efficiency.
- A longer cycle ⇒ more WC needed ⇒ more bank financing required.