98.75% is the change from 320 to 636
Calculation steps:
[( 636 - 320 ) ÷ 320] x 100 = 98.75%
Formula
Percentage change = [(636 - 320) / 320] x 100
Subtract the new number by the original number
636 - 320 = 316
316 ÷ 320 = 0.9875
0.9875 x 100 = 98.75%