-50.77% is the change from 392 to 193
Calculation steps:
[( 193 - 392 ) ÷ 392] x 100 = -50.77%
Formula
Percentage change = [(193 - 392) / 392] x 100
Subtract the new number by the original number
193 - 392 = -199
-199 ÷ 392 = -0.5076530612244898
-0.5076530612244898 x 100 = -50.77%