-39.69% is the change from 456 to 275
Calculation steps:
[( 275 - 456 ) ÷ 456] x 100 = -39.69%
Formula
Percentage change = [(275 - 456) / 456] x 100
Subtract the new number by the original number
275 - 456 = -181
-181 ÷ 456 = -0.3969298245614035
-0.3969298245614035 x 100 = -39.69%