-75.34% is the change from 669 to 165
Calculation steps:
[( 165 - 669 ) ÷ 669] x 100 = -75.34%
Formula
Percentage change = [(165 - 669) / 669] x 100
Subtract the new number by the original number
165 - 669 = -504
-504 ÷ 669 = -0.7533632286995515
-0.7533632286995515 x 100 = -75.34%