62.19% is the change from 320 to 519
Calculation steps:
[( 519 - 320 ) ÷ 320] x 100 = 62.19%
Formula
Percentage change = [(519 - 320) / 320] x 100
Subtract the new number by the original number
519 - 320 = 199
199 ÷ 320 = 0.621875
0.621875 x 100 = 62.19%