-56.12% is the change from 392 to 172
Calculation steps:
[( 172 - 392 ) ÷ 392] x 100 = -56.12%
Formula
Percentage change = [(172 - 392) / 392] x 100
Subtract the new number by the original number
172 - 392 = -220
-220 ÷ 392 = -0.5612244897959183
-0.5612244897959183 x 100 = -56.12%