73.82% is the change from 489 to 850
Calculation steps:
[( 850 - 489 ) ÷ 489] x 100 = 73.82%
Formula
Percentage change = [(850 - 489) / 489] x 100
Subtract the new number by the original number
850 - 489 = 361
361 ÷ 489 = 0.7382413087934561
0.7382413087934561 x 100 = 73.82%