-48.29% is the change from 642 to 332
Calculation steps:
[( 332 - 642 ) ÷ 642] x 100 = -48.29%
Formula
Percentage change = [(332 - 642) / 642] x 100
Subtract the new number by the original number
332 - 642 = -310
-310 ÷ 642 = -0.48286604361370716
-0.48286604361370716 x 100 = -48.29%