-92.65% is the change from 408 to 30
Calculation steps:
[( 30 - 408 ) ÷ 408] x 100 = -92.65%
Formula
Percentage change = [(30 - 408) / 408] x 100
Subtract the new number by the original number
30 - 408 = -378
-378 ÷ 408 = -0.9264705882352942
-0.9264705882352942 x 100 = -92.65%