-80.66% is the change from 977 to 189
Calculation steps:
[( 189 - 977 ) ÷ 977] x 100 = -80.66%
Formula
Percentage change = [(189 - 977) / 977] x 100
Subtract the new number by the original number
189 - 977 = -788
-788 ÷ 977 = -0.8065506653019447
-0.8065506653019447 x 100 = -80.66%