-84.8% is the change from 921 to 140
Calculation steps:
[( 140 - 921 ) ÷ 921] x 100 = -84.8%
Formula
Percentage change = [(140 - 921) / 921] x 100
Subtract the new number by the original number
140 - 921 = -781
-781 ÷ 921 = -0.8479913137893594
-0.8479913137893594 x 100 = -84.8%