166.56% is the change from 320 to 853
Calculation steps:
[( 853 - 320 ) ÷ 320] x 100 = 166.56%
Formula
Percentage change = [(853 - 320) / 320] x 100
Subtract the new number by the original number
853 - 320 = 533
533 ÷ 320 = 1.665625
1.665625 x 100 = 166.56%