What number is 80% of 860?

80% of 860 is 688 because
860 x 0.8 =

688
 
A percent is a 'part of a hundred', so this is why you write percents as decimals
To write a percent as a decimal, follow these steps:
-Remove the percent symbol.
-Move the decimal point two places to the left, adding in zeros as needed.
This will make it easier to solve.