John Doe(Programmer) annual salary is $60000 and earns $5000/mo. 
Tim Doe(Programmer) annual salary is $80000 and earns $6666.6666666667/mo. 
Sarah Apple(Designer) annual salary is $100000 and earns $8333.3333333333/mo. 
Amy Twin(Manager) annual salary is $200000 and earns $16666.666666667/mo.