-63.9% is the change from 662 to 239
Calculation steps:
[( 239 - 662 ) ÷ 662] x 100 = -63.9%
Formula
Percentage change = [(239 - 662) / 662] x 100
Subtract the new number by the original number
239 - 662 = -423
-423 ÷ 662 = -0.6389728096676737
-0.6389728096676737 x 100 = -63.9%