-7.62% is the change from 669 to 618
Calculation steps:
[( 618 - 669 ) ÷ 669] x 100 = -7.62%
Formula
Percentage change = [(618 - 669) / 669] x 100
Subtract the new number by the original number
618 - 669 = -51
-51 ÷ 669 = -0.07623318385650224
-0.07623318385650224 x 100 = -7.62%