-97.93% is the change from 193 to 4
Calculation steps:
[( 4 - 193 ) ÷ 193] x 100 = -97.93%
Formula
Percentage change = [(4 - 193) / 193] x 100
Subtract the new number by the original number
4 - 193 = -189
-189 ÷ 193 = -0.9792746113989638
-0.9792746113989638 x 100 = -97.93%