-43.62% is the change from 917 to 517
Calculation steps:
[( 517 - 917 ) ÷ 917] x 100 = -43.62%
Formula
Percentage change = [(517 - 917) / 917] x 100
Subtract the new number by the original number
517 - 917 = -400
-400 ÷ 917 = -0.4362050163576881
-0.4362050163576881 x 100 = -43.62%