-2.4% is the change from 499 to 487
Calculation steps:
[( 487 - 499 ) ÷ 499] x 100 = -2.4%
Formula
Percentage change = [(487 - 499) / 499] x 100
Subtract the new number by the original number
487 - 499 = -12
-12 ÷ 499 = -0.02404809619238477
-0.02404809619238477 x 100 = -2.4%