-77.79% is the change from 842 to 187
Calculation steps:
[( 187 - 842 ) ÷ 842] x 100 = -77.79%
Formula
Percentage change = [(187 - 842) / 842] x 100
Subtract the new number by the original number
187 - 842 = -655
-655 ÷ 842 = -0.7779097387173397
-0.7779097387173397 x 100 = -77.79%