Respuesta :

Answer:

27.53%

Step-by-step explanation:

Initial number = 100

9% increase

100*1.09= 109

17% increase

109*1.17= 127.53

The difference with the initial number is:

127.53 - 100 = 27.53

27.53/100*100% = 27.53%

This is the single percentage change