-47.23% is the change from 650 to 343
Calculation steps:
[( 343 - 650 ) ÷ 650] x 100 = -47.23%
Formula
Percentage change = [(343 - 650) / 650] x 100
Subtract the new number by the original number
343 - 650 = -307
-307 ÷ 650 = -0.4723076923076923
-0.4723076923076923 x 100 = -47.23%