86.88% is the change from 320 to 598
Calculation steps:
[( 598 - 320 ) ÷ 320] x 100 = 86.88%
Formula
Percentage change = [(598 - 320) / 320] x 100
Subtract the new number by the original number
598 - 320 = 278
278 ÷ 320 = 0.86875
0.86875 x 100 = 86.88%