Abrand of cereal had 1.21.21, point, 2 milligrams (\text{mg})(mg)left parenthesis, start text, m, g, end text, right parenthesis of iron per serving. then they changed their recipe so they had 1.8\,\text{mg}1.8mg1, point, 8, start text, m, g, end text of iron per serving.
what was the percent increase in iron?

There was 49.58 increase in iron

Step-by-step explanation:

Given:

Previously iron content= 1.21 mg per serving.

Current iron content= 1.81 mg per serving.

Amount of irons increased = Current iron content - Previously iron content =

Now

Percentage of amount increased =

this is not the answer this is just a question. is this middle school math?

step-by-step explanation: