-48.37% is the change from 643 to 332
Calculation steps:
[( 332 - 643 ) ÷ 643] x 100 = -48.37%
Formula
Percentage change = [(332 - 643) / 643] x 100
Subtract the new number by the original number
332 - 643 = -311
-311 ÷ 643 = -0.48367029548989116
-0.48367029548989116 x 100 = -48.37%