-68.46% is the change from 612 to 193
Calculation steps:
[( 193 - 612 ) ÷ 612] x 100 = -68.46%
Formula
Percentage change = [(193 - 612) / 612] x 100
Subtract the new number by the original number
193 - 612 = -419
-419 ÷ 612 = -0.684640522875817
-0.684640522875817 x 100 = -68.46%