-64.91% is the change from 966 to 339
Calculation steps:
[( 339 - 966 ) ÷ 966] x 100 = -64.91%
Formula
Percentage change = [(339 - 966) / 966] x 100
Subtract the new number by the original number
339 - 966 = -627
-627 ÷ 966 = -0.6490683229813664
-0.6490683229813664 x 100 = -64.91%