-47.89% is the change from 639 to 333
Calculation steps:
[( 333 - 639 ) ÷ 639] x 100 = -47.89%
Formula
Percentage change = [(333 - 639) / 639] x 100
Subtract the new number by the original number
333 - 639 = -306
-306 ÷ 639 = -0.4788732394366197
-0.4788732394366197 x 100 = -47.89%