-83.48% is the change from 811 to 134
Calculation steps:
[( 134 - 811 ) ÷ 811] x 100 = -83.48%
Formula
Percentage change = [(134 - 811) / 811] x 100
Subtract the new number by the original number
134 - 811 = -677
-677 ÷ 811 = -0.8347718865598027
-0.8347718865598027 x 100 = -83.48%