-87% is the change from 977 to 127
Calculation steps:
[( 127 - 977 ) ÷ 977] x 100 = -87%
Formula
Percentage change = [(127 - 977) / 977] x 100
Subtract the new number by the original number
127 - 977 = -850
-850 ÷ 977 = -0.8700102354145343
-0.8700102354145343 x 100 = -87%