-15.35% is the change from 228 to 193
Calculation steps:
[( 193 - 228 ) ÷ 228] x 100 = -15.35%
Formula
Percentage change = [(193 - 228) / 228] x 100
Subtract the new number by the original number
193 - 228 = -35
-35 ÷ 228 = -0.15350877192982457
-0.15350877192982457 x 100 = -15.35%