Respuesta :

the best way to solve this is to set up a proportion

84        21
----  = ------
x         100

then you cross multiply and divide

100 × 84 = 8400 ÷ 21 = 400

84 is 21% of 400
Hello!

Use The Percentage Formula To Find out 21% Of What Number Is 84:

84 * 100 / 21 = 400

ANSWER:

84 is 21% of 400.