256.9% is the change from 239 to 853
Calculation steps:
[( 853 - 239 ) ÷ 239] x 100 = 256.9%
Formula
Percentage change = [(853 - 239) / 239] x 100
Subtract the new number by the original number
853 - 239 = 614
614 ÷ 239 = 2.569037656903766
2.569037656903766 x 100 = 256.9%