547.5% is the change from 120 to 777
Calculation steps:
[( 777 - 120 ) ÷ 120] x 100 = 547.5%
Formula
Percentage change = [(777 - 120) / 120] x 100
Subtract the new number by the original number
777 - 120 = 657
657 ÷ 120 = 5.475
5.475 x 100 = 547.5%
Example