289.87% is the change from 79 to 308
Calculation steps:
[( 308 - 79 ) ÷ 79] x 100 = 289.87%
Formula
Percentage change = [(308 - 79) / 79] x 100
Subtract the new number by the original number
308 - 79 = 229
229 ÷ 79 = 2.8987341772151898
2.8987341772151898 x 100 = 289.87%