This year McCann's net Retail Sales were $1,600,000. They have 5 stores. Two of these stores just opened this year and account for 20% of this year's business. Last year the store did $1,450,000 in net Retail Sales. 

a. How much sales volume did the new stores do T.Y.? 

b. Using the Same Store Sales metric (Comp Sales), what % did the store's business increase or decrease T.Y. / L.Y.? Use negative sign for a decrease, if necessary. 

c. Was this an increase or decrease