83.74% is the change from 326 to 599
Calculation steps:
[( 599 - 326 ) ÷ 326] x 100 = 83.74%
Formula
Percentage change = [(599 - 326) / 326] x 100
Subtract the new number by the original number
599 - 326 = 273
273 ÷ 326 = 0.8374233128834356
0.8374233128834356 x 100 = 83.74%