Answer :
If Janice bought the bottles of perfume yesterday then her total cost would be as follows.
Each bottle costs 6.03 $
So six bottles cost 6 * 6.03 = 36.18
The cost would have been 36$ and 20 cents
If she bought the bottles today after the increase, then her total cost would be as follows.
Each bottle would now cost 6.03 + 0.06 = 6.09
The price for 6 bottles would be 6.09 * 6 = 36.54
Therefore the cost would be 36 $ and 50 cents