-41.51% is the change from 518 to 303
Calculation steps:
[( 303 - 518 ) ÷ 518] x 100 = -41.51%
Formula
Percentage change = [(303 - 518) / 518] x 100
Subtract the new number by the original number
303 - 518 = -215
-215 ÷ 518 = -0.41505791505791506
-0.41505791505791506 x 100 = -41.51%