Given:
In year 2010
Number of chefs/head cooks = 100600
Number of full service manager = 320800
In year 2020
Number of chefs/head cooks = 98100
Number of full service manager = 318000
Required:
Which job is facing the largest percentage decrease
Step-by-step explanation:
The percentage decrease in number of chefs is given by
![Percentage=\frac{number\text{ }of\text{ }chefs\text{ }in\text{ }2010-number\text{ }of\text{ }chefs\text{ }in\text{ }2020}{number\text{ }of\text{ }chefs\text{ }in\text{ }2010}*100](https://img.qammunity.org/2023/formulas/mathematics/high-school/vgnnovsheewxcc3if8yaw6g91s5fmu1l10.png)
Substituting the values we get
![\begin{gathered} Percentage\text{ }decrease\text{ }in\text{ }chefs=(100600-98100)/(100600)*100 \\ \\ =(2500)/(100600)*100 \\ \\ =0.0248*100 \\ =2.48\% \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/high-school/56yick17w0mv709ijmvcl2lu9mvup6tngr.png)
The percentage decrease in number of service manager is given by
![\begin{gathered} Percentage \\ =\frac{number\text{ }of\text{ }service\text{ }manager\text{ }in\text{ }2010-number\text{ }of\text{ }service\text{ }manager\text{ }in\text{ }2020}{number\text{ }of\text{ }service\text{ }manager\text{ }in\text{ }2010}*100 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/high-school/xd2kk9tx7fg0msjgpdkk0nd3h7p7i99mrq.png)
Substituting the values we get
![\begin{gathered} Percentage\text{ }decrease\text{ }in\text{ }service\text{ }manager=(320800-318000)/(320800)*100 \\ \\ =(2800)/(320800)*100 \\ \\ =0.0087*100 \\ =0.87\% \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/high-school/m5kv8ku5hca7aeudn0rtkqeky5qa2cp7h3.png)
Final answer:
The chef's job is facing the largest percentage decrease by 2.48%