-64.16% is the change from 957 to 343
Calculation steps:
[( 343 - 957 ) ÷ 957] x 100 = -64.16%
Formula
Percentage change = [(343 - 957) / 957] x 100
Subtract the new number by the original number
343 - 957 = -614
-614 ÷ 957 = -0.6415882967607106
-0.6415882967607106 x 100 = -64.16%