-42.72% is the change from 515 to 295
Calculation steps:
[( 295 - 515 ) ÷ 515] x 100 = -42.72%
Formula
Percentage change = [(295 - 515) / 515] x 100
Subtract the new number by the original number
295 - 515 = -220
-220 ÷ 515 = -0.42718446601941745
-0.42718446601941745 x 100 = -42.72%