-17.6% is the change from 977 to 805
Calculation steps:
[( 805 - 977 ) ÷ 977] x 100 = -17.6%
Formula
Percentage change = [(805 - 977) / 977] x 100
Subtract the new number by the original number
805 - 977 = -172
-172 ÷ 977 = -0.17604912998976457
-0.17604912998976457 x 100 = -17.6%