308.97% is the change from 78 to 319
Calculation steps:
[( 319 - 78 ) ÷ 78] x 100 = 308.97%
Formula
Percentage change = [(319 - 78) / 78] x 100
Subtract the new number by the original number
319 - 78 = 241
241 ÷ 78 = 3.08974358974359
3.08974358974359 x 100 = 308.97%