Suppose that a product currently sells for $44, with the price increasing at the rate of \$3 I his price, consumers will buy 249 thousand items, but the number being bought is decre: rate of 15 thousand per year. At what rate is the total revenue changing? Is the total revel increasing or decreasing? The total revenue changing at the rate of 1,407 thousand dollars per year; the revenue is decreasing. The total revenue changing at the rate of +1,407 thousand dollars per year; the revenue is increasing. The total revenue changing at the rate of -87 thousand dollars per year; the revenue is decreasing. The total revenue changing at the rate of +87 thousand dollars per year; the revenue is increasing