word problem

[vivid crown]

So from 2014-2017 it’s 3 years do 12000 x 3^0.7

[left eagle]

Other way around, your exponential growth is what gets raised to a power.

12,000 x 0.7^3.

We use 0.7 because the value is decaying by 30%. 1 - 0.3 is 0.7.