Mathematician involved in the development of percentage

No one person invented percentages. The concept developed throughout history. In Ancient Rome mathematical computation were expressed in fractions of 100.

Step-by-step explanation:

The term has been attributed to Latin per centum. The concept of considering values as parts of a hundred is originally Greek. The symbol for percent (%) evolved from a symbol abbreviating the Italian per cento. In some other languages, the form procent or prosent is used instead.

Hope this helps

step-by-step explanation:

if you meant, "on the way from (3, 2) to (3, 14):

x does not change; y increases by 12.

ensure that you have copied down this problem correctly.   .