If a monthly revenue increases from 8,000 to 12,000 between two months, what is the percent increase?

If a monthly revenue increases from 8,000 to 12,000 between two months, what is the percent increase?

• A. 25%
• B. 50%
• C. 40%
• D. 60%

Answer: (B)

Percent change is found by comparing the amount of increase to the original value. Here, the revenue rises from 8,000 to 12,000, so the increase is 4,000. Dividing the increase by the original amount gives 4,000 / 8,000 = 0.5, which is 50%. So the percent increase is 50%. You can also see this by noting that 12,000 is 1.5 times 8,000, which corresponds to a 50% increase. The other options would imply different increases (2,000 for 25%, 3,200 for 40%, 4,800 for 60%), which don’t match the actual change.

Percent change is found by comparing the amount of increase to the original value. Here, the revenue rises from 8,000 to 12,000, so the increase is 4,000. Dividing the increase by the original amount gives 4,000 / 8,000 = 0.5, which is 50%. So the percent increase is 50%. You can also see this by noting that 12,000 is 1.5 times 8,000, which corresponds to a 50% increase. The other options would imply different increases (2,000 for 25%, 3,200 for 40%, 4,800 for 60%), which don’t match the actual change.