-39.77% is the change from 963 to 580
Calculation steps:
[( 580 - 963 ) ÷ 963] x 100 = -39.77%
Formula
Percentage change = [(580 - 963) / 963] x 100
Subtract the new number by the original number
580 - 963 = -383
-383 ÷ 963 = -0.39771547248182765
-0.39771547248182765 x 100 = -39.77%