678% is the change from 100 to 778
Calculation steps:
[( 778 - 100 ) ÷ 100] x 100 = 678%
Formula
Percentage change = [(778 - 100) / 100] x 100
Subtract the new number by the original number
778 - 100 = 678
678 ÷ 100 = 6.78
6.78 x 100 = 678%
Example