298 A MANUAL FOR NORTHERN WOODSMEN 



COMPOUND INTEREST TABLE 



Amount of SI principal after any number of years and at 

 given rates percent 



TIME IN WHICH A SUM WILL DOUBLE 



Note in above tables that a sum at compound interest doubles when rate 

 <>f interest X number of years equals (very nearly) 71. With this remem- 

 bered many problems in compound interest can be solved mentally. 



