-92.24% is the change from 490 to 38
Calculation steps:
[( 38 - 490 ) ÷ 490] x 100 = -92.24%
Formula
Percentage change = [(38 - 490) / 490] x 100
Subtract the new number by the original number
38 - 490 = -452
-452 ÷ 490 = -0.9224489795918367
-0.9224489795918367 x 100 = -92.24%