-52.04% is the change from 490 to 235
Calculation steps:
[( 235 - 490 ) ÷ 490] x 100 = -52.04%
Formula
Percentage change = [(235 - 490) / 490] x 100
Subtract the new number by the original number
235 - 490 = -255
-255 ÷ 490 = -0.5204081632653061
-0.5204081632653061 x 100 = -52.04%