-48.1% is the change from 632 to 328
Calculation steps:
[( 328 - 632 ) ÷ 632] x 100 = -48.1%
Formula
Percentage change = [(328 - 632) / 632] x 100
Subtract the new number by the original number
328 - 632 = -304
-304 ÷ 632 = -0.4810126582278481
-0.4810126582278481 x 100 = -48.1%