-40.44% is the change from 643 to 383
Calculation steps:
[( 383 - 643 ) ÷ 643] x 100 = -40.44%
Formula
Percentage change = [(383 - 643) / 643] x 100
Subtract the new number by the original number
383 - 643 = -260
-260 ÷ 643 = -0.40435458786936235
-0.40435458786936235 x 100 = -40.44%