Get contract burndown

Commitment attainment for a contract, counted before the EDP discount (unblended cost, or usage amount for usage-based contracts).

• data: spend per series. granular is keyed by segment start, the later of the month start and the contract period start, so a period starting mid-month splits that month into two keys. isMarketplace marks series billed by AWS Marketplace, which the Marketplace cap applies to. forecastBounds holds prediction intervals for forecast months.
• forecastMonths: month keys whose values come from the forecast model.
• currentMonthActuals: current month spend to date, keyed by segment, summed across series with the Marketplace cap applied.
• periods: per period attainment: actualSpend (includes the current month to date), projectedSpend (forecast still to come), projectedEnd, projectedShortfall (target minus projected end, floored at 0), projectedMeetMonth, projectedRange, meetChance, target, paceTarget, variance, status, outcome and isComplete. projectedRange (low, high) is where the period likely ends: the 10th to 90th percentile of simulated outcomes, sized from the forecast's past error, never below actualSpend and with counted Marketplace spend capped. meetChance (0 to 1) is the chance the period reaches its target; both are null for a finished period or without a forecast, and meetChance also once the target is met. outcome is Met or Missed for a finished period and Not started before it starts. An open period is On track (chance to meet 80% or more), Likely to miss (20% or less) or At risk (between); without a chance it is On track or At risk from projectedEnd, or from pace when there is no forecast. status compares spend with pace only and is kept for compatibility.
• savings: what the EDP and private pricing discounts saved, read from the contract's EdpDiscount and PrivateRateDiscount billing rows. eligibleSpend is the contract's spend AWS bills itself, before the discount (the EDP does not apply to AWS Marketplace, Azure or SaaS spend). realizedEdpRate is EDP savings as a percentage of it, null when billing shows no EDP discount. projectedEdpSavings extends each period's rate over its forecast. Totals and periods (keyed like periods above). null for usage-based contracts or when the savings could not be read.
• scopeRestricted: true when the caller's data scope covers only part of the contract's spend. The totals are then partial, and status and outcome should not be read as on track or behind.
• projectedBreachDate is kept for compatibility; prefer periods[].projectedMeetMonth.