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%