-40.35% is the change from 637 to 380
Calculation steps:
[( 380 - 637 ) ÷ 637] x 100 = -40.35%
Formula
Percentage change = [(380 - 637) / 637] x 100
Subtract the new number by the original number
380 - 637 = -257
-257 ÷ 637 = -0.40345368916797486
-0.40345368916797486 x 100 = -40.35%