168.95% is the change from 306 to 823
Calculation steps:
[( 823 - 306 ) ÷ 306] x 100 = 168.95%
Formula
Percentage change = [(823 - 306) / 306] x 100
Subtract the new number by the original number
823 - 306 = 517
517 ÷ 306 = 1.6895424836601307
1.6895424836601307 x 100 = 168.95%