-44.6% is the change from 917 to 508
Calculation steps:
[( 508 - 917 ) ÷ 917] x 100 = -44.6%
Formula
Percentage change = [(508 - 917) / 917] x 100
Subtract the new number by the original number
508 - 917 = -409
-409 ÷ 917 = -0.44601962922573607
-0.44601962922573607 x 100 = -44.6%