-42.97% is the change from 903 to 515
Calculation steps:
[( 515 - 903 ) ÷ 903] x 100 = -42.97%
Formula
Percentage change = [(515 - 903) / 903] x 100
Subtract the new number by the original number
515 - 903 = -388
-388 ÷ 903 = -0.42967884828349945
-0.42967884828349945 x 100 = -42.97%