TimberCalc™ is three integrated programs; Machine cost, Follow up and Estimate. Machine cost calculates the fixed and variable costs of operating forest machines and machine teams on a time and volume basis. It also enables the user to compare and analyze the differences in these operating costs and to predict the impact on their business of a change in a particular cost. The TimberCalc™ Follow up program enables the user to trace and manage their costs and income with functions like invoicing, VAT calculation, and a variety of cost income and expense reports. TimberCalc™ Estimate is a program for creating and monitoring budgets and for calculating tenders.