Final answer:
To calculate the percentage change from 10 hours to 6 hours, we find the difference (4 hours), divide it by the original amount (10 hours), and multiply by 100 to get a 40% decrease.
Step-by-step explanation:
The question asks about calculating the percentage change when the time decreases from 10 hours to 6 hours. To find the percentage change, we need to subtract the new value from the original value, then divide the result by the original value and finally multiply by 100 to get the percentage.
Here's the calculation step-by-step:
- Change in quantity = Original Quantity - New Quantity
- Change in quantity = 10 hrs - 6 hrs = 4 hrs
- Percentage change = (Change in quantity / Original Quantity) x 100
- Percentage change = (4 hrs / 10 hrs) x 100
- Percentage change = 0.4 x 100
- Percentage change = 40%
The percentage change from 10 hours to 6 hours is 40%.