-42.38% is the change from 446 to 257
Calculation steps:
[( 257 - 446 ) ÷ 446] x 100 = -42.38%
Formula
Percentage change = [(257 - 446) / 446] x 100
Subtract the new number by the original number
257 - 446 = -189
-189 ÷ 446 = -0.42376681614349776
-0.42376681614349776 x 100 = -42.38%