217.29% is the change from 266 to 844
Calculation steps:
[( 844 - 266 ) ÷ 266] x 100 = 217.29%
Formula
Percentage change = [(844 - 266) / 266] x 100
Subtract the new number by the original number
844 - 266 = 578
578 ÷ 266 = 2.172932330827068
2.172932330827068 x 100 = 217.29%