234.62% is the change from 260 to 870
Calculation steps:
[( 870 - 260 ) ÷ 260] x 100 = 234.62%
Formula
Percentage change = [(870 - 260) / 260] x 100
Subtract the new number by the original number
870 - 260 = 610
610 ÷ 260 = 2.3461538461538463
2.3461538461538463 x 100 = 234.62%