Instead of thinking about one field changing in response to the change of the other, it is more correct to say that. whenever the magnetic field is changing, so is the electric field, and vice versa.The way these fields change is governed by Maxwell's equations.This way, we do not arrive at the confusion OP has.nstead of thinking about one field changing in response to the change of the other, it is more correct to say that. whenever the magnetic field is changing, so is the electric field, and vice versa.
Gross profit = net sales â cost of goods sold. Gross profit percentage = [(net sales â cost of goods sold)/net sales] Ã 100%.
Gross profit and earnings before interest, taxes, depreciation and amortization, or EBITDA, are accounting calculations used to analyze a company and its business efficiency. Both figures relate to earnings, and the primary difference between the two is what particular aspects of financial health are analyzed. Gross Profit. Gross profit is calculated by subtracting the cost of goods sold, or COGS, from total revenue, both of which are found on a company's income statement.