-55.64% is the change from 949 to 421
Calculation steps:
[( 421 - 949 ) ÷ 949] x 100 = -55.64%
Formula
Percentage change = [(421 - 949) / 949] x 100
Subtract the new number by the original number
421 - 949 = -528
-528 ÷ 949 = -0.5563751317175974
-0.5563751317175974 x 100 = -55.64%