339.33% is the change from 89 to 391
Calculation steps:
[( 391 - 89 ) ÷ 89] x 100 = 339.33%
Formula
Percentage change = [(391 - 89) / 89] x 100
Subtract the new number by the original number
391 - 89 = 302
302 ÷ 89 = 3.393258426966292
3.393258426966292 x 100 = 339.33%