As noted in the email accompanying your MHSW Billing documents, issued on July 15, 2014
Your SSA is calculated by capturing the total tonnage reported by a steward (in their Q1 Report) and dividing it by the total material universe (all stewards in the material category for that quarter). The SSA percentage is then multiplied by the total cost of the material for the quarter, indicating the invoice amount.
Example:
| Steward | Reported Kgs | SSA % | SSA Expense |
|---|---|---|---|
| Steward A | 500 | 50% | $25,000 |
| Steward B | 350 | 35% | $17,500 |
| Steward C | 150 | 15% | $7,500 |
| Total | 1,000 | 100% | $50,000 |