Learn about gross, operating, and net profit margins, how each is calculated, and how businesses and investors can use them to analyze a company’s profitability.

Revise trigonometric ratios of sine, cosine and tangent and calculate angles in right-angled triangles with this Bitesize GCSE Maths Edexcel guide.

Return on sales (ROS) is a financial ratio used to evaluate a company's operational efficiency.

Learn and revise how to plot coordinates and create straight line graphs to show the relationship between two variables with GCSE Bitesize Edexcel Maths.

Yahoo Finance is chronicling the latest news and updates on Trump's tariffs.