Question 153048
Remember, to find percentages, we can use the ratio


<pre>

  part        percent
-------- =  ----------
  whole        100

</pre>



Since 300 is the "part", 450 is the "whole", this gives the ratio: {{{300/450=x/100}}}


{{{300/450=x/100}}} Start with the given ratio



{{{(300/450)*100=x}}} Multiply both sides by 100



{{{30000/450=x}}} Multiply



{{{200/3=x}}} Simplify




So our answer is  {{{x=200/3}}} which is roughly 66.67



Now subtract this percentage from 100 to get


100-66.67=33.33


So the percent of discount is 33.33%