-47.85% is the change from 163 to 85
Calculation steps:
[( 85 - 163 ) ÷ 163] x 100 = -47.85%
Formula
Percentage change = [(85 - 163) / 163] x 100
Subtract the new number by the original number
85 - 163 = -78
-78 ÷ 163 = -0.4785276073619632
-0.4785276073619632 x 100 = -47.85%