-44.71% is the change from 917 to 507
Calculation steps:
[( 507 - 917 ) ÷ 917] x 100 = -44.71%
Formula
Percentage change = [(507 - 917) / 917] x 100
Subtract the new number by the original number
507 - 917 = -410
-410 ÷ 917 = -0.44711014176663033
-0.44711014176663033 x 100 = -44.71%