234.48% is the change from 290 to 970
Calculation steps:
[( 970 - 290 ) ÷ 290] x 100 = 234.48%
Formula
Percentage change = [(970 - 290) / 290] x 100
Subtract the new number by the original number
970 - 290 = 680
680 ÷ 290 = 2.3448275862068964
2.3448275862068964 x 100 = 234.48%