-5.1% is the change from 902 to 856
Calculation steps:
[( 856 - 902 ) ÷ 902] x 100 = -5.1%
Formula
Percentage change = [(856 - 902) / 902] x 100
Subtract the new number by the original number
856 - 902 = -46
-46 ÷ 902 = -0.050997782705099776
-0.050997782705099776 x 100 = -5.1%