what is the combined rate of growth for combined trend what is the standard deviation for the annual rate of change how to calculate average annual rate of change annual rates of change how to get annual rate of change how do you calculate annual rate of average change combining annual indices and standard error average annual rate of change when does na na change when is combined rate of change what is the annual rate of change how to get annual rate of change on data how to calculate annual rate of increase how can i get an annual rate of change in a trend? when does annual rate of change increase how can one combine the annual rate of change with a standard error formula how do i find annual rate of change when does trending change na na combining trend when is nar standardized for combined trend