-75.07% is the change from 678 to 169
Calculation steps:
[( 169 - 678 ) ÷ 678] x 100 = -75.07%
Formula
Percentage change = [(169 - 678) / 678] x 100
Subtract the new number by the original number
169 - 678 = -509
-509 ÷ 678 = -0.7507374631268436
-0.7507374631268436 x 100 = -75.07%