There are exactly 320 pages in 852 digits.
240 is half-way in between 0 and 480.
1
p/4 - 320
240
280
80 - 320 = -240
80 (240/80 = 3 and 320/80 = 4)
3/4 of 320 is 240.
25% off 320 = 320 - (0.25 x 320) = 240
It's difficult to tell which way that one's going. 240 to 320 is a 33 and 1/3% increase. 320 to 240 is a 25% decrease.
.75 x 320 = 240
It is 75%
240
240 = 3/4 of 320
320x320 is 320 pixels tall, and 320 pixels wide. It is a square screen with an aspect ratio of 1:1 320x240 is 240 pixels tall, and 320 pixels wide. It is a taller, rectangular screen with an aspect ratio of 4:3 [like standard definition (full screen) video]
On a 120 v supply 320 watts is 320/120 amps, or 2.667 amps. On a 240 v supply the current is 320/240 amps, or 1.333 amps.