Amazon Prime Day Price Inflation
As one example the price of Right Guard Sport Clear Gel Anti Perspirant Deodorant, Active, 3 Ounce (Pack of 6) TWO DAYS BEFORE Prime Day (July 10) was $14.99. ONE DAY BEFORE Prime Day the price was increased to $17.08. On Prime Day the price was INCREASED to $19.36 and a discount of 35% was offered. AFTER Prime Day the price returned to $14.99. Price history (except the price on Prime Day itself) courtesy of camel^3
I found the same pattern on every other item I purchased that day, except for one.