-76.63% is the change from 800 to 187
Calculation steps:
[( 187 - 800 ) ÷ 800] x 100 = -76.63%
Formula
Percentage change = [(187 - 800) / 800] x 100
Subtract the new number by the original number
187 - 800 = -613
-613 ÷ 800 = -0.76625
-0.76625 x 100 = -76.63%