You can always use the formula to solve out the percentage.
(n / 100) x d = a
If I subtitute,
(200 / 100) x d = 7
-> 2 x d = 7
-> d = 7 / 2
-> d = 3.5
Therefore, 3.5% of 200 is 7.
Hope it helped!
3.5% :-) 200/100=2 (which is 1 percent) to get 7 you do 2*3.5 (i did) your welcome :-)
You have 2 good answers here.
I'll give you a third (really easy one)
$${\frac{{\mathtt{7}}}{{\mathtt{200}}}}{\mathtt{\,\times\,}}{\mathtt{100}} = {\frac{{\mathtt{7}}}{{\mathtt{2}}}} = {\mathtt{3.5}}$$
3.5%
