e$.$ Blake is evaluating two options to increase the number of mascots sold next month. First, he believes he can increase sales by advertising in the university newspaper. Blake can purchase a package of $12$ ads over the next month for a total of $$1,200.$ He believes the ads will increase the number of stuffed mascots sold from $500$ to $960.$ A second option would be to reduce the selling price. Blake believes a $10\%$ decrease in the price will result in $1,000$ mascots sold. Which plan should Blake implement? At what level of sales would he be indifferent between the two plans?