Different prices in Shopping cart form and Shopping cart summary views in Commerce price table
In the shopping cart summary view, are you using the 
(Line items referenced by commerce_line_items) Commerce Line item: Unit price (Price) field  or (Products referenced by commerce_product) Commerce Product: Price (Price) field to output the unit price? 

You should be using Commerce Line item: Unit price, this one is overridden by the Override price with price table rule