-37.06% is the change from 456 to 287
Calculation steps:
[( 287 - 456 ) ÷ 456] x 100 = -37.06%
Formula
Percentage change = [(287 - 456) / 456] x 100
Subtract the new number by the original number
287 - 456 = -169
-169 ÷ 456 = -0.3706140350877193
-0.3706140350877193 x 100 = -37.06%