There were 19,817 endangered species in 2012. In 2021, there were 23,051 engangered species. By what percent did the number increase between 2012 and 2021? Express your answer to the nearest percent.

Question

Due in a few hours. Thank you!

Answer 1

What describing how an amount changed as a percentage, we ALWAYS compare the net amount of the change to what it was BEFORE the change. (After - Before)/Before. In this problem the number increased from 19817 to 23051. Subtract to find the net increase, 23,051 - 19,817 = 3234. Next, we calculate the quotient 3234/19817 ≈ .16319. Lastly, we Multiply by 100% to convert this decimal number to a percentage. Our final answer, after rounding, is 16%.