You can write 0.326 in word form: Three hundred (0.300) twenty-six thousandths (0.026).
You can also write 0.326 as a percentage: 32.6%.
To get a percentage from a decimal, simply times it by 100. In this case, 0.326 x 100 would equal 32.6. Don't forget to move the decimal two places to the right and add the percentage sign.