-34.78% is the change from 900 to 587
Calculation steps:
[( 587 - 900 ) ÷ 900] x 100 = -34.78%
Formula
Percentage change = [(587 - 900) / 900] x 100
Subtract the new number by the original number
587 - 900 = -313
-313 ÷ 900 = -0.3477777777777778
-0.3477777777777778 x 100 = -34.78%