-44.38% is the change from 917 to 510
Calculation steps:
[( 510 - 917 ) ÷ 917] x 100 = -44.38%
Formula
Percentage change = [(510 - 917) / 917] x 100
Subtract the new number by the original number
510 - 917 = -407
-407 ÷ 917 = -0.44383860414394766
-0.44383860414394766 x 100 = -44.38%