-16.89% is the change from 977 to 812
Calculation steps:
[( 812 - 977 ) ÷ 977] x 100 = -16.89%
Formula
Percentage change = [(812 - 977) / 977] x 100
Subtract the new number by the original number
812 - 977 = -165
-165 ÷ 977 = -0.16888433981576254
-0.16888433981576254 x 100 = -16.89%