66.25% is the change from 320 to 532
Calculation steps:
[( 532 - 320 ) ÷ 320] x 100 = 66.25%
Formula
Percentage change = [(532 - 320) / 320] x 100
Subtract the new number by the original number
532 - 320 = 212
212 ÷ 320 = 0.6625
0.6625 x 100 = 66.25%