268.9% is the change from 209 to 771
Calculation steps:
[( 771 - 209 ) ÷ 209] x 100 = 268.9%
Formula
Percentage change = [(771 - 209) / 209] x 100
Subtract the new number by the original number
771 - 209 = 562
562 ÷ 209 = 2.688995215311005
2.688995215311005 x 100 = 268.9%