-37.58% is the change from 990 to 618
Calculation steps:
[( 618 - 990 ) ÷ 990] x 100 = -37.58%
Formula
Percentage change = [(618 - 990) / 990] x 100
Subtract the new number by the original number
618 - 990 = -372
-372 ÷ 990 = -0.37575757575757573
-0.37575757575757573 x 100 = -37.58%