-62.84% is the change from 923 to 343
Calculation steps:
[( 343 - 923 ) ÷ 923] x 100 = -62.84%
Formula
Percentage change = [(343 - 923) / 923] x 100
Subtract the new number by the original number
343 - 923 = -580
-580 ÷ 923 = -0.628385698808234
-0.628385698808234 x 100 = -62.84%