Answer:
33.3333% increase
Explanation:
simplify....
15:20
Calculate percentage change
from V1 = 15 to V2 = 20
(V2−V1) |V1| ×100
= (20−15) |15| ×100
= 515×100
= 0.333333×100
= 33.3333%change
= 33.3333%increase
It's an increase cuz your going up and not going down a number
Hope this helped a little!