-92.82% is the change from 418 to 30
Calculation steps:
[( 30 - 418 ) ÷ 418] x 100 = -92.82%
Formula
Percentage change = [(30 - 418) / 418] x 100
Subtract the new number by the original number
30 - 418 = -388
-388 ÷ 418 = -0.9282296650717703
-0.9282296650717703 x 100 = -92.82%