To determine the percent change we can use the following formula.
lPercent Change
=Amount of increase or decrease/Original amount
From the given times, we can see that the athlete ran faster this year. For this reason, we are finding a percent decrease. To do this, we have to subtract the new time from the original time.
ccc
& 6min & 13 s
- & 6min & 5 s
[0.5em] [-0.9em]
& & 8 s
To use the formula, we need the original time in seconds as well. Since 1 minute equals 60 seconds, the athlete ran for 373 seconds.
6 minutes 13 seconds: 6 * 60+13= 373 seconds
Now we can use the formula.
