-63.86% is the change from 949 to 343
Calculation steps:
[( 343 - 949 ) ÷ 949] x 100 = -63.86%
Formula
Percentage change = [(343 - 949) / 949] x 100
Subtract the new number by the original number
343 - 949 = -606
-606 ÷ 949 = -0.6385669125395153
-0.6385669125395153 x 100 = -63.86%