-36.26% is the change from 921 to 587
Calculation steps:
[( 587 - 921 ) ÷ 921] x 100 = -36.26%
Formula
Percentage change = [(587 - 921) / 921] x 100
Subtract the new number by the original number
587 - 921 = -334
-334 ÷ 921 = -0.36264929424538545
-0.36264929424538545 x 100 = -36.26%