-19.32% is the change from 383 to 309
Calculation steps:
[( 309 - 383 ) ÷ 383] x 100 = -19.32%
Formula
Percentage change = [(309 - 383) / 383] x 100
Subtract the new number by the original number
309 - 383 = -74
-74 ÷ 383 = -0.19321148825065274
-0.19321148825065274 x 100 = -19.32%