-44.79% is the change from 643 to 355
Calculation steps:
[( 355 - 643 ) ÷ 643] x 100 = -44.79%
Formula
Percentage change = [(355 - 643) / 643] x 100
Subtract the new number by the original number
355 - 643 = -288
-288 ÷ 643 = -0.447900466562986
-0.447900466562986 x 100 = -44.79%