Answer : The percent decrease in number of calories consumed is, 18.18 %
Step-by-step explanation :
As we are given that:
Calories consumed by a body builder in yesterday = 4400 calories
Calories consumed by a body builder in today = 3600 calories
Now we have to determine the percent decrease in number of calories consumed.
![\text{Percent decrease}=\frac{\text{Calories consumed in yesterday}-\text{Calories consumed in today}}{\text{Calories consumed in yesterday}}* 100](https://img.qammunity.org/2019/formulas/mathematics/high-school/2pplynxx9ppsxw9re9idmmmkb4ubptx53b.png)
Now put all the given values in this formula, we get:
![\text{Percent decrease}=((4400-3600)cal)/(4400cal)* 100](https://img.qammunity.org/2019/formulas/mathematics/high-school/5ce7ugqir20887v1lw3jxi93p3qmdcgixz.png)
![\text{Percent decrease}=(800cal)/(4400cal)* 100](https://img.qammunity.org/2019/formulas/mathematics/high-school/dq8vuiop08zb0yra1886wu2nqgyde5ojel.png)
![\text{Percent decrease}=18.18\%](https://img.qammunity.org/2019/formulas/mathematics/high-school/6juxs5ys0iq1rjtdl6bd54cb8onlxh8ig2.png)
Therefore, the percent decrease in number of calories consumed is, 18.18 %