2.0 manual shipping addition problems

I am using cs-cart version 2.03 I’m setting up manual shipping prices and the costs are not adding up correctly. Everything checks out fine I put 7 items in cart and I get $10.95 which is correct. But when I put 8 items being bought it doesn’t add up right. It should be $11.64 but I’m getting a $11.47

I have “cost dependences” set at 0 and $5.95

Item Dependences are set as this

more than 4 items - rate value is 3

more than 6 items - rate value is 5

more than 7 items - rate value is 0.69 with (per item checked).