-4.13% is the change from 508 to 487
Calculation steps:
[( 487 - 508 ) ÷ 508] x 100 = -4.13%
Formula
Percentage change = [(487 - 508) / 508] x 100
Subtract the new number by the original number
487 - 508 = -21
-21 ÷ 508 = -0.04133858267716536
-0.04133858267716536 x 100 = -4.13%