206.3% is the change from 254 to 778
Calculation steps:
[( 778 - 254 ) ÷ 254] x 100 = 206.3%
Formula
Percentage change = [(778 - 254) / 254] x 100
Subtract the new number by the original number
778 - 254 = 524
524 ÷ 254 = 2.062992125984252
2.062992125984252 x 100 = 206.3%