4862.5% is the change from 8 to 397
Calculation steps:
[( 397 - 8 ) ÷ 8] x 100 = 4862.5%
Formula
Percentage change = [(397 - 8) / 8] x 100
Subtract the new number by the original number
397 - 8 = 389
389 ÷ 8 = 48.625
48.625 x 100 = 4862.5%
Example