Analise's resting heart rate is 75 beats per minute. When she sleeps, it slows to 60 beats per minute. What percent decrease is this?
To find the percentage decrease:
1) Subtract the new from the original: 75 - 60 = 15
2) Divide by the original: 15 / 75 = 0.20
3) Turn into a decimal by multiplying by 100: 0.20 x 100 = 20.0%