-82.08% is the change from 921 to 165
Calculation steps:
[( 165 - 921 ) ÷ 921] x 100 = -82.08%
Formula
Percentage change = [(165 - 921) / 921] x 100
Subtract the new number by the original number
165 - 921 = -756
-756 ÷ 921 = -0.8208469055374593
-0.8208469055374593 x 100 = -82.08%