-73.37% is the change from 612 to 163
Calculation steps:
[( 163 - 612 ) ÷ 612] x 100 = -73.37%
Formula
Percentage change = [(163 - 612) / 612] x 100
Subtract the new number by the original number
163 - 612 = -449
-449 ÷ 612 = -0.7336601307189542
-0.7336601307189542 x 100 = -73.37%