Working 9 to 5

Write a function that calculates overtime and pay associated with overtime.

• Working 9 to 5: regular hours
• After 5pm is overtime

Your function gets an array with 4 values:

• Start of working day, in decimal format, (24-hour day notation)
• End of working day. (Same format)
• Hourly rate
• Overtime multiplier

Your function should spit out:

• $ + earned that day (rounded to the nearest hundreth)

Examples

overTime([9, 17, 30, 1.5]) ➞ "$240.00"

overTime([16, 18, 30, 1.8]) ➞ "$84.00"

overTime([13.25, 15, 30, 1.5]) ➞ "$52.50"

2nd example explained:

• From 16 to 17 is regular, so 1 * 30 = 30
• From 17 to 18 is overtime, so 1 * 30 * 1.8 = 54
• 30 + 54 = $84.00