183.39% is the change from 307 to 870
Calculation steps:
[( 870 - 307 ) ÷ 307] x 100 = 183.39%
Formula
Percentage change = [(870 - 307) / 307] x 100
Subtract the new number by the original number
870 - 307 = 563
563 ÷ 307 = 1.8338762214983713
1.8338762214983713 x 100 = 183.39%