A school had 900 students at the start of a school year. If there is an enrollment increase of 7% by the beginning of the next year, what is the

new enrollment?

Here is how I came up with the answer: (It just don't seem right)

900/B = 7/100 = 7*b = 900*100

7B = 90,000

B = 90,000/7 = 12,857 therefore the new enrollment is 12,857