42.62% is the change from 610 to 870
Calculation steps:
[( 870 - 610 ) ÷ 610] x 100 = 42.62%
Formula
Percentage change = [(870 - 610) / 610] x 100
Subtract the new number by the original number
870 - 610 = 260
260 ÷ 610 = 0.4262295081967213
0.4262295081967213 x 100 = 42.62%