The population increased by 10% between ten years ago and now
Here, we want to get the percentage increase in population
To find the percentage increase, we use the formula below;
[tex]\text{percentage increase = }\frac{new\text{ value -old value}}{\text{old value}}\text{ }\times100\text{ percent}[/tex]From the question, new population value is 101,920 while the old population value is 91,000
Substituting these values into the equation, we have it as;
[tex]\begin{gathered} \text{percentage increase = }\frac{101920-91000}{91000}\times\text{ 100\%} \\ \\ =\text{ }\frac{10920}{91000}\text{ }\times\text{ 100\% = 12\%} \end{gathered}[/tex]