-76.62% is the change from 851 to 199
Calculation steps:
[( 199 - 851 ) ÷ 851] x 100 = -76.62%
Formula
Percentage change = [(199 - 851) / 851] x 100
Subtract the new number by the original number
199 - 851 = -652
-652 ÷ 851 = -0.7661574618096357
-0.7661574618096357 x 100 = -76.62%