Astronomy is a natural science. It is the study of everything outside the atmosphere of Earth. It studies celestial objects (such as stars, galaxies, planets, moons, asteroids, comets and nebulae) and processes (such as supernovae explosions, gamma ray bursts, and cosmic microwave background radiation).
Definition. EBITDA Margin (TTM) is trailing twelve month earnings before interest, taxes, depreciation and amortization divided by trailing twelve month net sales. EBITDA Margin (Quarterly) is the specified Quarter earnings before interest, taxes, depreciation and amortization divided by Quarter sales.
EBITDA stands for Earnings before Interest, Taxes, Depreciation & Amortization expense. EBITDA is a tool to measure the value of a firm based on its net earnings before non-cash expenses (depreciation & amortization) are recorded, as well as dilutive expenses such as interest expense & taxes.