To write a percent as a decimal, first remember that a percent is a ratio that compares a number to 100. We can think of 81% as the ratio [tex]\frac{81}{100}[/tex] or 81 ÷ 100. Remember that dividing by 100 moves the decimal point 2 places to the left. 81 ÷ 100 would move the decimal point 2 places to the left, which would give us .81 or 0.81. Therefore, 81% can be written as the decimal 0.81
