270.87% is the change from 206 to 764
Calculation steps:
[( 764 - 206 ) ÷ 206] x 100 = 270.87%
Formula
Percentage change = [(764 - 206) / 206] x 100
Subtract the new number by the original number
764 - 206 = 558
558 ÷ 206 = 2.70873786407767
2.70873786407767 x 100 = 270.87%