-51.62% is the change from 494 to 239
Calculation steps:
[( 239 - 494 ) ÷ 494] x 100 = -51.62%
Formula
Percentage change = [(239 - 494) / 494] x 100
Subtract the new number by the original number
239 - 494 = -255
-255 ÷ 494 = -0.5161943319838057
-0.5161943319838057 x 100 = -51.62%