-84.24% is the change from 977 to 154
Calculation steps:
[( 154 - 977 ) ÷ 977] x 100 = -84.24%
Formula
Percentage change = [(154 - 977) / 977] x 100
Subtract the new number by the original number
154 - 977 = -823
-823 ÷ 977 = -0.842374616171955
-0.842374616171955 x 100 = -84.24%