-77.29% is the change from 731 to 166
Calculation steps:
[( 166 - 731 ) ÷ 731] x 100 = -77.29%
Formula
Percentage change = [(166 - 731) / 731] x 100
Subtract the new number by the original number
166 - 731 = -565
-565 ÷ 731 = -0.7729138166894665
-0.7729138166894665 x 100 = -77.29%