-84.47% is the change from 850 to 132
Calculation steps:
[( 132 - 850 ) ÷ 850] x 100 = -84.47%
Formula
Percentage change = [(132 - 850) / 850] x 100
Subtract the new number by the original number
132 - 850 = -718
-718 ÷ 850 = -0.8447058823529412
-0.8447058823529412 x 100 = -84.47%