-9.12% is the change from 669 to 608
Calculation steps:
[( 608 - 669 ) ÷ 669] x 100 = -9.12%
Formula
Percentage change = [(608 - 669) / 669] x 100
Subtract the new number by the original number
608 - 669 = -61
-61 ÷ 669 = -0.09118086696562033
-0.09118086696562033 x 100 = -9.12%