original price was 620
STEP - BY - STEP EXPLANATION
What to find?
The original price.
Given:
Lisa bought a suit on sale for 167.40. This price was 73% less than the original price.
Let x be the original price.
We will follow the steps below to solve;
Step 1
Translate the question into Mathematical statement.
That is;
x - 73% (x) = 167.40

Step 2
Simplify the left-hand side of the equation.

Step 3
Divide both-side of the equation by 0.27


Therefore, the original price was 620