-26.67% is the change from 851 to 624
Calculation steps:
[( 624 - 851 ) ÷ 851] x 100 = -26.67%
Formula
Percentage change = [(624 - 851) / 851] x 100
Subtract the new number by the original number
624 - 851 = -227
-227 ÷ 851 = -0.26674500587544064
-0.26674500587544064 x 100 = -26.67%