-44.92% is the change from 915 to 504
Calculation steps:
[( 504 - 915 ) ÷ 915] x 100 = -44.92%
Formula
Percentage change = [(504 - 915) / 915] x 100
Subtract the new number by the original number
504 - 915 = -411
-411 ÷ 915 = -0.4491803278688525
-0.4491803278688525 x 100 = -44.92%