-21.87% is the change from 791 to 618
Calculation steps:
[( 618 - 791 ) ÷ 791] x 100 = -21.87%
Formula
Percentage change = [(618 - 791) / 791] x 100
Subtract the new number by the original number
618 - 791 = -173
-173 ÷ 791 = -0.21871049304677623
-0.21871049304677623 x 100 = -21.87%