180.65% is the change from 310 to 870
Calculation steps:
[( 870 - 310 ) ÷ 310] x 100 = 180.65%
Formula
Percentage change = [(870 - 310) / 310] x 100
Subtract the new number by the original number
870 - 310 = 560
560 ÷ 310 = 1.8064516129032258
1.8064516129032258 x 100 = 180.65%