-78.37% is the change from 920 to 199
Calculation steps:
[( 199 - 920 ) ÷ 920] x 100 = -78.37%
Formula
Percentage change = [(199 - 920) / 920] x 100
Subtract the new number by the original number
199 - 920 = -721
-721 ÷ 920 = -0.783695652173913
-0.783695652173913 x 100 = -78.37%