Question

find the percentage change from the first value to the second of 40;72

Answer 1

Answer:

  80%

Step-by-step explanation:

The percentage change is calculated from ...

  percent change = ((new)/(old) -1) × 100%

  = (72/40 -1) × 100%

  = (1.8 -1) × 100%

  = 80%

The second value is 80% greater than the first.