-33.62% is the change from 931 to 618
Calculation steps:
[( 618 - 931 ) ÷ 931] x 100 = -33.62%
Formula
Percentage change = [(618 - 931) / 931] x 100
Subtract the new number by the original number
618 - 931 = -313
-313 ÷ 931 = -0.33619763694951665
-0.33619763694951665 x 100 = -33.62%