-51.43% is the change from 490 to 238
Calculation steps:
[( 238 - 490 ) ÷ 490] x 100 = -51.43%
Formula
Percentage change = [(238 - 490) / 490] x 100
Subtract the new number by the original number
238 - 490 = -252
-252 ÷ 490 = -0.5142857142857142
-0.5142857142857142 x 100 = -51.43%