-85.16% is the change from 977 to 145
Calculation steps:
[( 145 - 977 ) ÷ 977] x 100 = -85.16%
Formula
Percentage change = [(145 - 977) / 977] x 100
Subtract the new number by the original number
145 - 977 = -832
-832 ÷ 977 = -0.8515864892528148
-0.8515864892528148 x 100 = -85.16%