-28.36% is the change from 892 to 639
Calculation steps:
[( 639 - 892 ) ÷ 892] x 100 = -28.36%
Formula
Percentage change = [(639 - 892) / 892] x 100
Subtract the new number by the original number
639 - 892 = -253
-253 ÷ 892 = -0.2836322869955157
-0.2836322869955157 x 100 = -28.36%