63.13% is the change from 320 to 522
Calculation steps:
[( 522 - 320 ) ÷ 320] x 100 = 63.13%
Formula
Percentage change = [(522 - 320) / 320] x 100
Subtract the new number by the original number
522 - 320 = 202
202 ÷ 320 = 0.63125
0.63125 x 100 = 63.13%