-16.27% is the change from 977 to 818
Calculation steps:
[( 818 - 977 ) ÷ 977] x 100 = -16.27%
Formula
Percentage change = [(818 - 977) / 977] x 100
Subtract the new number by the original number
818 - 977 = -159
-159 ÷ 977 = -0.16274309109518936
-0.16274309109518936 x 100 = -16.27%