-75.49% is the change from 669 to 164
Calculation steps:
[( 164 - 669 ) ÷ 669] x 100 = -75.49%
Formula
Percentage change = [(164 - 669) / 669] x 100
Subtract the new number by the original number
164 - 669 = -505
-505 ÷ 669 = -0.7548579970104634
-0.7548579970104634 x 100 = -75.49%