-47.37% is the change from 456 to 240
Calculation steps:
[( 240 - 456 ) ÷ 456] x 100 = -47.37%
Formula
Percentage change = [(240 - 456) / 456] x 100
Subtract the new number by the original number
240 - 456 = -216
-216 ÷ 456 = -0.47368421052631576
-0.47368421052631576 x 100 = -47.37%