Keep track of your income and expenses for one month. List all your assets and liabilities (debts owed) in a spreadsheet. Based on these documents, develop a monthly budget and a net worth statement. someone help pls i need help asap

mark, a civil engineer, entered into a contract with david. as per the contract, mark agreed to design and build a house for david for a specified fee. mark provided david with an estimation of the total cost and the contract was mutually agreed upon. however, during construction, when mark increased the price due to a miscalculation on his part, david refused to pay the amount. this scenario is an example of a mistake.