The previous price given the percentage decrease is 400.
How to find the previous price?
It follows from the task content that the previous price of the commodity is required;
let, x = previous price
New price = 340
Percentage decrease = 15%
Hence, it follows from the given information that;
340 = x - (15% × x)
340 = x - (0.15x)
340 = 0.85x
x = 340/0.85
x = 400
Therefore, the previous price given the percentage decrease is 400.
Learn more about percentage:
https://brainly.com/question/843074
#SPJ1
