-92.84% is the change from 419 to 30
Calculation steps:
[( 30 - 419 ) ÷ 419] x 100 = -92.84%
Formula
Percentage change = [(30 - 419) / 419] x 100
Subtract the new number by the original number
30 - 419 = -389
-389 ÷ 419 = -0.9284009546539379
-0.9284009546539379 x 100 = -92.84%