20% decrease.
100*64/80 = 80%
64 is 80% of 80.
64/80 = 8/10 = 80/100 = 80% 64 is 80% of 80.
80%
25% decrease.
68.75% decrease.
67.1875% decrease.
The number 80 means 100 percent 80/100 = 0.8 means 1 percent. 64/0.8 gives 80 percent, belonging to the number 64.
80/100*64=51.2 Thank you
$64
80