-43.16% is the change from 906 to 515
Calculation steps:
[( 515 - 906 ) ÷ 906] x 100 = -43.16%
Formula
Percentage change = [(515 - 906) / 906] x 100
Subtract the new number by the original number
515 - 906 = -391
-391 ÷ 906 = -0.4315673289183223
-0.4315673289183223 x 100 = -43.16%