-55.74% is the change from 949 to 420
Calculation steps:
[( 420 - 949 ) ÷ 949] x 100 = -55.74%
Formula
Percentage change = [(420 - 949) / 949] x 100
Subtract the new number by the original number
420 - 949 = -529
-529 ÷ 949 = -0.5574288724973656
-0.5574288724973656 x 100 = -55.74%