-16.17% is the change from 798 to 669
Calculation steps:
[( 669 - 798 ) ÷ 798] x 100 = -16.17%
Formula
Percentage change = [(669 - 798) / 798] x 100
Subtract the new number by the original number
669 - 798 = -129
-129 ÷ 798 = -0.16165413533834586
-0.16165413533834586 x 100 = -16.17%