Answer:
546
Step-by-step explanation:
I find the answer in a weird way and I don't wanna confuse you, but this is how I found it. (it helps me)
So first I find one percent of 840 which is 8.4 because 840 divided by 100 is 8.40.
Next I do 8.40 x 65 (because we are tying to find 65 percent) and that is 546
(hope I didn't confuse you)