-83.7% is the change from 810 to 132
Calculation steps:
[( 132 - 810 ) ÷ 810] x 100 = -83.7%
Formula
Percentage change = [(132 - 810) / 810] x 100
Subtract the new number by the original number
132 - 810 = -678
-678 ÷ 810 = -0.837037037037037
-0.837037037037037 x 100 = -83.7%