-50.64% is the change from 393 to 194
Calculation steps:
[( 194 - 393 ) ÷ 393] x 100 = -50.64%
Formula
Percentage change = [(194 - 393) / 393] x 100
Subtract the new number by the original number
194 - 393 = -199
-199 ÷ 393 = -0.5063613231552163
-0.5063613231552163 x 100 = -50.64%