When you are looking for a percent, the best way is to firstly find 10%. For this, you just divide your answer by 10, which in this case, gives 20. You should then divide the percentage that you are trying to find (65%) by ten. When you divide 65% by ten, you get 6.5%, and this is what you should multiply 20 by, in order to find your answer.
In this case, 6.5%x20= 130, hope this has been able to help you.