Question

What is 5% of 400 please add the formula for finding this if you can

Answer 1

percent formula : is/of = %/100

what is 5% of 400
is = x
of = 400
% = 5

now we sub
x/400 = 5/100
this is a proportion, so we cross multiply
(100)(x) = (400)(5)
100x = 2000
x = 2000/100
x = 20......so 5% of 400 is 20