-50.26% is the change from 390 to 194
Calculation steps:
[( 194 - 390 ) ÷ 390] x 100 = -50.26%
Formula
Percentage change = [(194 - 390) / 390] x 100
Subtract the new number by the original number
194 - 390 = -196
-196 ÷ 390 = -0.5025641025641026
-0.5025641025641026 x 100 = -50.26%