-2.21% is the change from 498 to 487
Calculation steps:
[( 487 - 498 ) ÷ 498] x 100 = -2.21%
Formula
Percentage change = [(487 - 498) / 498] x 100
Subtract the new number by the original number
487 - 498 = -11
-11 ÷ 498 = -0.02208835341365462
-0.02208835341365462 x 100 = -2.21%