-77.39% is the change from 827 to 187
Calculation steps:
[( 187 - 827 ) ÷ 827] x 100 = -77.39%
Formula
Percentage change = [(187 - 827) / 827] x 100
Subtract the new number by the original number
187 - 827 = -640
-640 ÷ 827 = -0.7738814993954051
-0.7738814993954051 x 100 = -77.39%