-59.86% is the change from 847 to 340
Calculation steps:
[( 340 - 847 ) ÷ 847] x 100 = -59.86%
Formula
Percentage change = [(340 - 847) / 847] x 100
Subtract the new number by the original number
340 - 847 = -507
-507 ÷ 847 = -0.5985832349468713
-0.5985832349468713 x 100 = -59.86%