If your answer is a negative number, then this is a percentage increase. % Decrease = Decrease ÷ Original Number × 100 Then: divide the decrease by the original number and multiply the answer by 100. To calculate percentage decrease:įirst: work out the difference (decrease) between the two numbers you are comparing. ![]() If your answer is a negative number, then this is a percentage decrease. % increase = Increase ÷ Original Number × 100. Then: divide the increase by the original number and multiply the answer by 100. To calculate the percentage increase:įirst: work out the difference (increase) between the two numbers you are comparing. For more general percentage calculations see our page Percentage Calculators. Understanding Statistical Distributionsįor an explanation and everyday examples of using percentages generally see our page Percentages: An Introduction.Area, Surface Area and Volume Reference Sheet.Simple Transformations of 2-Dimensional Shapes.Polar, Cylindrical and Spherical Coordinates.Introduction to Cartesian Coordinate Systems.Introduction to Geometry: Points, Lines and Planes. ![]() ![]()
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