-42.25% is the change from 639 to 369
Calculation steps:
[( 369 - 639 ) ÷ 639] x 100 = -42.25%
Formula
Percentage change = [(369 - 639) / 639] x 100
Subtract the new number by the original number
369 - 639 = -270
-270 ÷ 639 = -0.4225352112676056
-0.4225352112676056 x 100 = -42.25%