-21.62% is the change from 740 to 580
Calculation steps:
[( 580 - 740 ) ÷ 740] x 100 = -21.62%
Formula
Percentage change = [(580 - 740) / 740] x 100
Subtract the new number by the original number
580 - 740 = -160
-160 ÷ 740 = -0.21621621621621623
-0.21621621621621623 x 100 = -21.62%