Since 1/100 is 1% or 0.01, then 0.9 is 90/100 or 90%. 0.907 is 907/1000 (we simply have the number and do 10^(numbers in the number after the decimal) for the denominator). or 90.7% (we have a decimal because it wouldn't make sense for it to be more than 1, but we know that it's not less than 90%
