-45.6% is the change from 557 to 303
Calculation steps:
[( 303 - 557 ) ÷ 557] x 100 = -45.6%
Formula
Percentage change = [(303 - 557) / 557] x 100
Subtract the new number by the original number
303 - 557 = -254
-254 ÷ 557 = -0.45601436265709155
-0.45601436265709155 x 100 = -45.6%