The original value is 100%, so multiply by 100 to give the original value. The original price (100%) is increased by 30% giving a total of 130%. £52 is 130% of the original price. Image caption ...

Return on investment (ROI) measures how well an investment is performing. Learn how to calculate and interpret the ROI of your current portfolio or a potential investment.

Last May, after years of demand from fans, TAG Heuer teamed up with Kith’s Ronnie Fieg to revive its beloved Formula 1 watches. The limited-edition run of 1,350 pieces quickly sold out—even if their ...