209.77% is the change from 266 to 824
Calculation steps:
[( 824 - 266 ) ÷ 266] x 100 = 209.77%
Formula
Percentage change = [(824 - 266) / 266] x 100
Subtract the new number by the original number
824 - 266 = 558
558 ÷ 266 = 2.0977443609022557
2.0977443609022557 x 100 = 209.77%