-11.49% is the change from 557 to 493
Calculation steps:
[( 493 - 557 ) ÷ 557] x 100 = -11.49%
Formula
Percentage change = [(493 - 557) / 557] x 100
Subtract the new number by the original number
493 - 557 = -64
-64 ÷ 557 = -0.11490125673249552
-0.11490125673249552 x 100 = -11.49%