-49.85% is the change from 664 to 333
Calculation steps:
[( 333 - 664 ) ÷ 664] x 100 = -49.85%
Formula
Percentage change = [(333 - 664) / 664] x 100
Subtract the new number by the original number
333 - 664 = -331
-331 ÷ 664 = -0.49849397590361444
-0.49849397590361444 x 100 = -49.85%