Cart Total calculated wrong in 1.5.6

[misu3108]

Hi ,

 

I noticed a problem in cart in the new 1.5.6 version.

I added 3 products 3 x $18.37 = $55.11

then I added a 10% discount = -$5.11

and with flat rate shipping = $3.99 

TOTAL = $53.59 NOT $53.99

 

Here's the attached cart:

 

 

Thanks