-84.54% is the change from 977 to 151
Calculation steps:
[( 151 - 977 ) ÷ 977] x 100 = -84.54%
Formula
Percentage change = [(151 - 977) / 977] x 100
Subtract the new number by the original number
151 - 977 = -826
-826 ÷ 977 = -0.8454452405322416
-0.8454452405322416 x 100 = -84.54%