-60.37% is the change from 863 to 342
Calculation steps:
[( 342 - 863 ) ÷ 863] x 100 = -60.37%
Formula
Percentage change = [(342 - 863) / 863] x 100
Subtract the new number by the original number
342 - 863 = -521
-521 ÷ 863 = -0.6037079953650057
-0.6037079953650057 x 100 = -60.37%