in the cart object, go to the calculations tab.
You will need to add a new calculation named realPrice and edit the TotalPrice Calculation.
the exact calculation depends on the name of your electrical hookup corner booth columns. For my example, I will assume they are named electricalHookup and cornerBooth. keep in mind PHP is case sensitive.
realPrice = (abs([electricalHookup] == 'yes')?50:0) + (abs([cornerBooth] == 'yes')?60:0) + [Price]
TotalPrice = ((abs([electricalHookup] == 'yes')?50:0) + (abs([cornerBooth] == 'yes')?60:0) + [Price])* [Quantity]
In your cart display, you will need to change the Price diplsy to use the realPrice calulation instead of the Price:
change:
<?php echo WA_eCart_DisplayMoney($cartname $cartname->DisplayInfo("Price")); ?>
to:
<?php echo WA_eCart_DisplayMoney($cartname $cartname->DisplayInfo("realPrice")); ?>
you will also need to change the local checkout code on the confirm page to pass the realPrice instead of the price to the gateway.