-98.56% is the change from 277 to 4
Calculation steps:
[( 4 - 277 ) ÷ 277] x 100 = -98.56%
Formula
Percentage change = [(4 - 277) / 277] x 100
Subtract the new number by the original number
4 - 277 = -273
-273 ÷ 277 = -0.9855595667870036
-0.9855595667870036 x 100 = -98.56%