220.75% is the change from 265 to 850
Calculation steps:
[( 850 - 265 ) ÷ 265] x 100 = 220.75%
Formula
Percentage change = [(850 - 265) / 265] x 100
Subtract the new number by the original number
850 - 265 = 585
585 ÷ 265 = 2.207547169811321
2.207547169811321 x 100 = 220.75%