The total of balance sheet codes BA002 - BA007 represents the cost/gift valuation of your assets at the point of acquisition and this value can be found on your Asset Register in cell M5.
The total of balance sheet codes BA102 - BA106 represents the value of the depreciation journals processed. At the beginning of the financial year this value can be found on your Asset Register in cell U5.
The current Net Book Value of your assets can be calculated by deducting the accumulated depreciation from the cost at the point of acquisition.