-41.59% is the change from 440 to 257
Calculation steps:
[( 257 - 440 ) ÷ 440] x 100 = -41.59%
Formula
Percentage change = [(257 - 440) / 440] x 100
Subtract the new number by the original number
257 - 440 = -183
-183 ÷ 440 = -0.4159090909090909
-0.4159090909090909 x 100 = -41.59%