-44.8% is the change from 913 to 504
Calculation steps:
[( 504 - 913 ) ÷ 913] x 100 = -44.8%
Formula
Percentage change = [(504 - 913) / 913] x 100
Subtract the new number by the original number
504 - 913 = -409
-409 ÷ 913 = -0.447973713033954
-0.447973713033954 x 100 = -44.8%