-48.09% is the change from 915 to 475
Calculation steps:
[( 475 - 915 ) ÷ 915] x 100 = -48.09%
Formula
Percentage change = [(475 - 915) / 915] x 100
Subtract the new number by the original number
475 - 915 = -440
-440 ÷ 915 = -0.4808743169398907
-0.4808743169398907 x 100 = -48.09%