Convert 87% to a decimal.

To convert a percentage to a decimal, you divide the percentage value by 100. Therefore, for the percentage 87%, you would perform the calculation as follows:

87% ÷ 100 = 0.87

This means that 87% in decimal form is 0.87. This method of conversion is standard and provides an easy way to express percentages as decimals, which can then be used for further calculations in various mathematical contexts.

Understanding this conversion process is important, as decimals are commonly used in calculations relating to surface water measurements, volumes, and other scientific data where precision is required.