-41.17% is the change from 515 to 303
Calculation steps:
[( 303 - 515 ) ÷ 515] x 100 = -41.17%
Formula
Percentage change = [(303 - 515) / 515] x 100
Subtract the new number by the original number
303 - 515 = -212
-212 ÷ 515 = -0.4116504854368932
-0.4116504854368932 x 100 = -41.17%