2777.78% is the change from 27 to 777
Calculation steps:
[( 777 - 27 ) ÷ 27] x 100 = 2777.78%
Formula
Percentage change = [(777 - 27) / 27] x 100
Subtract the new number by the original number
777 - 27 = 750
750 ÷ 27 = 27.77777777777778
27.77777777777778 x 100 = 2777.78%