In the last year, Bakers Score's Donuts and Sweets has sold, on average, 1,300 ''Fudgie'' brownies per week. This week they introduced fat-free brownies and sold 270 at a price of $3.75 each. They noticed the cannibalization rate of fat-free brownies on Fudgie brownies was 46%. Bakers Score's sells their "Fudgie" brownies for $3.01, with a variable cost of $1.34. The new Fat-Free Brownies have a variable cost of $1.57. What was the percentage sales decrease that Fudgie brownies incurred?