input: Write a function to calculate the compound interest given the investment amount, rate of interest, and time. The function should return the calculated compound interest.
  
  def compoundInterest(investment_amount, rate_of_interest, time):
      compound_interest = investment_amount * (pow((1 + rate_of_interest / 100), time))
      return compound_interest
  
  assert compoundInterest(1000, 5, 5) == 1276.2815625
  assert compoundInterest(500, 3, 10) == 671.95818725
  assert compoundInterest(2000, 7, 4) == 2621.62789568
  assert compoundInterest(1500, 10, 2) == 1815.00
output: def compoundInterest(investment_amount, rate_of_interest, time):
      compound_interest = investment_amount * (pow((1 + rate_of_interest / 100), time))
      return compound_interest