Re: Assuming that the number of per-sonal injury lawyers stays constant fr
[#permalink]
07 Jun 2023, 04:00
OE
The question asks for the percent increase from one value to the next. Use the percent change formula: first find the amount of change between values and then divide that amount by the original value. In 2015, the difference between intellectual property lawyers and personal injury lawyers is 3%. But that's not the correct answer, because you are looking for the percent increase. The amount of change (3%) divided by the original amount (7%) is roughly 43%, (E).
Perhaps an easier way to think about this would be to pick a real number for total lawyers. Here, because the question deals with percents, a good number to pick would be 100. In that case, out of 100 lawyers in 2015, 7 are intellectual property and 10 are personal injury. For the number of intel-lectual property lawyers to increase to match the number of personal injury lawyers, there would need to be 3 more intellectual property lawyers. So, the increase from 7 to 10 would be 3, and 3 divided by 7 is roughly 43%.