Calculation of a growing total
A growing total is calculated on the same way as calculation of totals using the code of events. But there is one distinction that for the Text components you do not have to set the ProcessAtEnd property in true. When the report generator is processing the component which outtypes a variable (used for calculation) it will outtype a component immediately. So if the Text component is in the PageFooter band then the total output of a page will be shown and as there is re-initialization then the variable will compile a total.