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.
Medioimages/Photodisc/Photodisc/Getty Images. EBITDA stands for earnings before interest, taxes, depreciation and amortization. A projected EBITDA uses the same method of calculation as an actual EBITDA. The only difference is that a projected EBITDA uses sales and expenses figures on a future basis.