-97.87% is the change from 188 to 4
Calculation steps:
[( 4 - 188 ) ÷ 188] x 100 = -97.87%
Formula
Percentage change = [(4 - 188) / 188] x 100
Subtract the new number by the original number
4 - 188 = -184
-184 ÷ 188 = -0.9787234042553191
-0.9787234042553191 x 100 = -97.87%