-49.74% is the change from 392 to 197
Calculation steps:
[( 197 - 392 ) ÷ 392] x 100 = -49.74%
Formula
Percentage change = [(197 - 392) / 392] x 100
Subtract the new number by the original number
197 - 392 = -195
-195 ÷ 392 = -0.49744897959183676
-0.49744897959183676 x 100 = -49.74%