To find last year's revenue based on this year's revenue and the percentage increase, we can use the formula for finding the original value before a percentage increase:
Let \( R \) be last year's revenue. Given that this year's revenue is $80,000 and it represents a 15% increase, we can set up the equation:
\[ R + 0.15R = 80,000 \]
This can be simplified to:
\[ 1.15R = 80,000 \]
Now, to find \( R \), divide both sides by 1.15:
\[ R = \frac{80,000}{1.15} \]
Calculating this gives:
\[ R \approx 69,565.22 \]
So, last year's revenue was approximately $69,565. The closest answer among the options is:
B. $69,565
1 answer