-34.08% is the change from 851 to 561
Calculation steps:
[( 561 - 851 ) ÷ 851] x 100 = -34.08%
Formula
Percentage change = [(561 - 851) / 851] x 100
Subtract the new number by the original number
561 - 851 = -290
-290 ÷ 851 = -0.3407755581668625
-0.3407755581668625 x 100 = -34.08%