-93.9% is the change from 164 to 10
Calculation steps:
[( 10 - 164 ) ÷ 164] x 100 = -93.9%
Formula
Percentage change = [(10 - 164) / 164] x 100
Subtract the new number by the original number
10 - 164 = -154
-154 ÷ 164 = -0.9390243902439024
-0.9390243902439024 x 100 = -93.9%