-36.75% is the change from 917 to 580
Calculation steps:
[( 580 - 917 ) ÷ 917] x 100 = -36.75%
Formula
Percentage change = [(580 - 917) / 917] x 100
Subtract the new number by the original number
580 - 917 = -337
-337 ÷ 917 = -0.3675027262813522
-0.3675027262813522 x 100 = -36.75%