My teacher salary in 1996 was $21,129 and in 2019 it was $58,429. What was my percent of change? Round to the nearest tenth.

9514 1404 393

  176.5%

Step-by-step explanation:

The percentage change can be computed from ...

  percent change = ((new value)/(old value) -1) × 100%

  = (58429/21129 -1) × 100%

  = (2.7653 -1) × 100%

  percent change ≈ 176.5%

Additional comment

The average annual increase can be found by taking the root of the ratio, where the root index is the number of years. The percentage increase each year is that root less 1.

  (2.7653^(1/(2019 -1996)) -1 ≈ 4.5% . . . per year for 23 years