-45% is the change from 380 to 209
Calculation steps:
[( 209 - 380 ) ÷ 380] x 100 = -45%
Formula
Percentage change = [(209 - 380) / 380] x 100
Subtract the new number by the original number
209 - 380 = -171
-171 ÷ 380 = -0.45
-0.45 x 100 = -45%
Example