-92.01% is the change from 488 to 39
Calculation steps:
[( 39 - 488 ) ÷ 488] x 100 = -92.01%
Formula
Percentage change = [(39 - 488) / 488] x 100
Subtract the new number by the original number
39 - 488 = -449
-449 ÷ 488 = -0.9200819672131147
-0.9200819672131147 x 100 = -92.01%