-64.28% is the change from 949 to 339
Calculation steps:
[( 339 - 949 ) ÷ 949] x 100 = -64.28%
Formula
Percentage change = [(339 - 949) / 949] x 100
Subtract the new number by the original number
339 - 949 = -610
-610 ÷ 949 = -0.642781875658588
-0.642781875658588 x 100 = -64.28%