input: Write a function to calculate the compound interest given the investment amount, rate of interest, and time period. 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(2000, 3, 7)==2482.839867666676
  assert compoundInterest(500, 2.5, 10)==640.2397519743822
  assert compoundInterest(1500, 4, 3)==1687.2048
  assert compoundInterest(250, 0, 2)==250.0
output: def compoundInterest(investment_amount, rate_of_interest, time):
      compound_interest = investment_amount * (pow((1 + rate_of_interest / 100), time))
      return compound_interest