-37.15% is the change from 918 to 577
Calculation steps:
[( 577 - 918 ) ÷ 918] x 100 = -37.15%
Formula
Percentage change = [(577 - 918) / 918] x 100
Subtract the new number by the original number
577 - 918 = -341
-341 ÷ 918 = -0.37145969498910675
-0.37145969498910675 x 100 = -37.15%