Respuesta :

Answer:

100 percent

Step-by-step explanation:

The value 40 increases to 80 meaning it doubles its value by one hundred percent.

840060

Answer:

40 was increased by 100%

Step-by-step explanation:

When we go from 40 to 80 we multiply by 2, therefore if we assume that

40 = 100% then 8 would equal 100% x 2 = 200%. So we can say that 40 was increased by 100%.