Radio
almost 90 percent - 45 million - of Americans homes had television sets
around 90%
It is made of 90 percent silver and 10 percent copper
In 1998, 1.03 million detached homes were constructed, accounting for more than 90 percent of the single-family market.
are more than 90 percent complete when they leave the factory, and have cabinets and flooring already installed
Probably about 90%
90 percent of what?
Silver
"90 percent" means 0.9, and "of" in arithmetic usually means "times". 0.9 x 90 = 81. 90 percent of 90 is 81.
FORTY IS WHAT PERCENT OF 90? FORTY IS WHAT PERCENT OF 90?
100 percent is 725.59 90 percent is 653.031
I would type it with the percent sign, like so: 90%