-58.15% is the change from 638 to 267
Calculation steps:
[( 267 - 638 ) ÷ 638] x 100 = -58.15%
Formula
Percentage change = [(267 - 638) / 638] x 100
Subtract the new number by the original number
267 - 638 = -371
-371 ÷ 638 = -0.5815047021943573
-0.5815047021943573 x 100 = -58.15%