Answer: I got $500
Explanation: What I did was I took the percent and rewrote it as 0.40, and then I did (1 - 0.40) From there you get 0.6 and take $300 divided by 0.6, so it should look like this ->
1. 40%=0.40
2. 1 - 0.40
3. = 0.6
4. 300 divided by 0.6 = 500.
Hopefully this was helpful