-77.7% is the change from 731 to 163
Calculation steps:
[( 163 - 731 ) ÷ 731] x 100 = -77.7%
Formula
Percentage change = [(163 - 731) / 731] x 100
Subtract the new number by the original number
163 - 731 = -568
-568 ÷ 731 = -0.7770177838577291
-0.7770177838577291 x 100 = -77.7%