-88.6% is the change from 421 to 48
Calculation steps:
[( 48 - 421 ) ÷ 421] x 100 = -88.6%
Formula
Percentage change = [(48 - 421) / 421] x 100
Subtract the new number by the original number
48 - 421 = -373
-373 ÷ 421 = -0.8859857482185273
-0.8859857482185273 x 100 = -88.6%