50 POINTS FOR THIS AND IF YOU GET IT RIGHT Lisa is examining a two-way table representing the sales of juice packaged in bottles with an old or new label. In the table, p, q, r, and s are the number of bottles sold or left on the grocery store shelf last Thursday.

Sales of Juice Bottles

Sold
Left on the Shelf
New Label
p
q
Old Label
r
s

Comparing which two values will determine whether the new label had an impact on sales?
p and q
p and r
p/p+r and q/q+5
p/p+q and r/r+s