First find 10% of 440.00 all you do is move the decimal to the left once. so 10% of 440 is 44 now find how much is off the suid so subtract 440-154 you get 286. multiply 44 by 6.5 and you get 286 move the decimal on the 6.5 to the right one and now you have 65% off!! home this helped you in any way possible! have an amazing day!!