Forecast cashflow month over month based on historical trends by service

Context

Finance needs to perform month over month forecasting of cashflow by extrapolating from historical cash costs. Having this data enables Finance to create cashflow cost models.

FOCUS Columns

FOCUS SQL Query

SELECT
  MONTH(BillingPeriodStart),
  ProviderName,
  ServiceCategory,
  ServiceName
  SUM(BilledCost) AS TotalBilledCost
FROM focus_data_table
WHERE BillingPeriodStart >= ? AND BillingPeriodEnd < ?
GROUP BY
  MONTH(BillingPeriodStart),
  ProviderName,
  ServiceCategory,
  ServiceName