-64.8% is the change from 966 to 340
Calculation steps:
[( 340 - 966 ) ÷ 966] x 100 = -64.8%
Formula
Percentage change = [(340 - 966) / 966] x 100
Subtract the new number by the original number
340 - 966 = -626
-626 ÷ 966 = -0.6480331262939959
-0.6480331262939959 x 100 = -64.8%