Your Startup’s 10 Most Important Metrics by @ttunguzThe TSM Average column is the Trailing Six Month Compound Growth Rate. It is calculated in this way: (ending_value/starting_value)^(1/(num_periods-1))-1. In most businesses, a monthly growth percent is too volatile to be meaningful. However the TSM Average smooths out the monthly change. Comparing the monthly to the TSM, we can get a sense of whether the monthly growth is accelerating or decelerat
