-97.86% is the change from 187 to 4
Calculation steps:
[( 4 - 187 ) ÷ 187] x 100 = -97.86%
Formula
Percentage change = [(4 - 187) / 187] x 100
Subtract the new number by the original number
4 - 187 = -183
-183 ÷ 187 = -0.9786096256684492
-0.9786096256684492 x 100 = -97.86%