Find the difference between the simple interest and the compound interest on Rs. 5000 for 2 years at 9% per annum.? Please answer soon its urgent.

simple interest=pnr/100

p=Rs.5000

n=2years

r=9%

si=5000*2*9/100

   =Rs 900

CI=p(1+r/100)ⁿ

  A =5000(1+(9/100)2

    =5000*(109/100)*(109/100)

    =5000*1.1881

    =5940.5 Rs

I=A-P=5940.5-5000=940.5RS

Difference between compound interest and simple interest, 

CI-SI=940.5-940

         =Rs 40.5!!

s...i=prt/100

=5000*2*9/100

=900

now,

c.i=p*(1+r/100)n-1

=940.5

difference=940.5-900=40.5