-64.56% is the change from 649 to 230
Calculation steps:
[( 230 - 649 ) ÷ 649] x 100 = -64.56%
Formula
Percentage change = [(230 - 649) / 649] x 100
Subtract the new number by the original number
230 - 649 = -419
-419 ÷ 649 = -0.6456086286594761
-0.6456086286594761 x 100 = -64.56%