-56.12% is the change from 515 to 226
Calculation steps:
[( 226 - 515 ) ÷ 515] x 100 = -56.12%
Formula
Percentage change = [(226 - 515) / 515] x 100
Subtract the new number by the original number
226 - 515 = -289
-289 ÷ 515 = -0.5611650485436893
-0.5611650485436893 x 100 = -56.12%