-42.25% is the change from 587 to 339
Calculation steps:
[( 339 - 587 ) ÷ 587] x 100 = -42.25%
Formula
Percentage change = [(339 - 587) / 587] x 100
Subtract the new number by the original number
339 - 587 = -248
-248 ÷ 587 = -0.42248722316865417
-0.42248722316865417 x 100 = -42.25%