Respuesta :

Answer:

45%

Step-by-step explanation:

20 is the original number

11 is the new number

20 - 11 = 9

you then divide the difference (9) by the original number (20)

9 divided by 20 = 0.45

multiply that number by 100 to find the percent

0.45 x 100 = 45%

Otras preguntas