-48.45% is the change from 644 to 332
Calculation steps:
[( 332 - 644 ) ÷ 644] x 100 = -48.45%
Formula
Percentage change = [(332 - 644) / 644] x 100
Subtract the new number by the original number
332 - 644 = -312
-312 ÷ 644 = -0.484472049689441
-0.484472049689441 x 100 = -48.45%