The Cashbook Control Report checks the validity of data for a selected bank account between two dates. It takes the Bank Balance as at the start of the period and adjusts the figure based on unbanked cheques and unbanked lodgments. It then adds the receipts and subtracts the expenses entered against the selected bank account. A further adjustment is made for unbanked cheques and unbanked lodgments to give a calculated bank balance. This should compare to the bank balance as per the bank statement (in the Incisive cashbook). The difference or variance between these two balances should be zero.