how to calculate percentages?
how do you calculate percentage of participation
You add the tax to 49.99. You have to know the percentage charged as tax. For example, if the tax is 5%, you calculate 5/100 x 49.99, and add it to 49.99. (You can also get this result faster, if you know a little about percentages: calculate 49.99 x 1.05 - assuming a 5% tax; multiply by 1.07 for a 7% tax, etc.). You add the tax to 49.99. You have to know the percentage…
Of course! Without decimals, you couldn't calculate percentages or fractions. Decimals allow you to break a number up. A decimal is basically a fraction, and when you calculate fraction adding, subtraction, multiplication, and division, sometimes it is easier to calculate a fraction by first changing it to a decimal instead.