-1.53% is the change from 851 to 838
Calculation steps:
[( 838 - 851 ) ÷ 851] x 100 = -1.53%
Formula
Percentage change = [(838 - 851) / 851] x 100
Subtract the new number by the original number
838 - 851 = -13
-13 ÷ 851 = -0.01527614571092832
-0.01527614571092832 x 100 = -1.53%