-9.26% is the change from 421 to 382
Calculation steps:
[( 382 - 421 ) ÷ 421] x 100 = -9.26%
Formula
Percentage change = [(382 - 421) / 421] x 100
Subtract the new number by the original number
382 - 421 = -39
-39 ÷ 421 = -0.09263657957244656
-0.09263657957244656 x 100 = -9.26%