-43% is the change from 907 to 517
Calculation steps:
[( 517 - 907 ) ÷ 907] x 100 = -43%
Formula
Percentage change = [(517 - 907) / 907] x 100
Subtract the new number by the original number
517 - 907 = -390
-390 ÷ 907 = -0.42998897464167585
-0.42998897464167585 x 100 = -43%