-16.38% is the change from 287 to 240
Calculation steps:
[( 240 - 287 ) ÷ 287] x 100 = -16.38%
Formula
Percentage change = [(240 - 287) / 287] x 100
Subtract the new number by the original number
240 - 287 = -47
-47 ÷ 287 = -0.16376306620209058
-0.16376306620209058 x 100 = -16.38%