308.79% is the change from 239 to 977
Calculation steps:
[( 977 - 239 ) ÷ 239] x 100 = 308.79%
Formula
Percentage change = [(977 - 239) / 239] x 100
Subtract the new number by the original number
977 - 239 = 738
738 ÷ 239 = 3.087866108786611
3.087866108786611 x 100 = 308.79%