-82.15% is the change from 913 to 163
Calculation steps:
[( 163 - 913 ) ÷ 913] x 100 = -82.15%
Formula
Percentage change = [(163 - 913) / 913] x 100
Subtract the new number by the original number
163 - 913 = -750
-750 ÷ 913 = -0.8214676889375685
-0.8214676889375685 x 100 = -82.15%