diff --git a/market_hours_range.go b/market_hours_range.go
index 27ff6db..477076d 100644
--- a/market_hours_range.go
+++ b/market_hours_range.go
@@ -183,5 +183,10 @@ func (mhr MarketHoursRange) Translate(value float64) int {
 	totalSeconds := Date.CalculateMarketSecondsBetween(mhr.Min, mhr.GetEffectiveMax(), mhr.GetMarketOpen(), mhr.GetMarketClose(), mhr.HolidayProvider)
 	valueDelta := Date.CalculateMarketSecondsBetween(mhr.Min, valueTimeEastern, mhr.GetMarketOpen(), mhr.GetMarketClose(), mhr.HolidayProvider)
 	translated := int((float64(valueDelta) / float64(totalSeconds)) * float64(mhr.Domain))
+
+	if r.IsDescending() {
+		return r.Domain - translated
+	}
+
 	return translated
 }