Sally runs a vegetable stand. The following table shows two points on the demand curve for the heirloom tomatoes she​ sells: Price
Quantity demanded per week

​Sally's marginal revenue from lowering the price of tomatoes from to is ​$
1.25. ​(Enter your response rounded to two decimal​ places.)
Lowering the price from to results in an output effect of ​$
375,000 and a price effect of ​$
negative 250,000. ​(Enter your responses as whole numbers and include a minus sign if​ necessary.)