-78.4% is the change from 977 to 211
Calculation steps:
[( 211 - 977 ) ÷ 977] x 100 = -78.4%
Formula
Percentage change = [(211 - 977) / 977] x 100
Subtract the new number by the original number
211 - 977 = -766
-766 ÷ 977 = -0.7840327533265097
-0.7840327533265097 x 100 = -78.4%