-66.34% is the change from 612 to 206
Calculation steps:
[( 206 - 612 ) ÷ 612] x 100 = -66.34%
Formula
Percentage change = [(206 - 612) / 612] x 100
Subtract the new number by the original number
206 - 612 = -406
-406 ÷ 612 = -0.6633986928104575
-0.6633986928104575 x 100 = -66.34%