-40.79% is the change from 657 to 389
Calculation steps:
[( 389 - 657 ) ÷ 657] x 100 = -40.79%
Formula
Percentage change = [(389 - 657) / 657] x 100
Subtract the new number by the original number
389 - 657 = -268
-268 ÷ 657 = -0.4079147640791476
-0.4079147640791476 x 100 = -40.79%