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 or earnings before interest taxes depreciation and amortization is a commonly used measure of cash flow.EBITDA can be calculated top down by adding back DDA or depreciation and amortization deducted as sales costs to operating income before interest and taxes.BITDA or earnings before interest taxes depreciation and amortization is a commonly used measure of cash flow.