-64.5% is the change from 555 to 197
Calculation steps:
[( 197 - 555 ) ÷ 555] x 100 = -64.5%
Formula
Percentage change = [(197 - 555) / 555] x 100
Subtract the new number by the original number
197 - 555 = -358
-358 ÷ 555 = -0.645045045045045
-0.645045045045045 x 100 = -64.5%