-66.06% is the change from 607 to 206
Calculation steps:
[( 206 - 607 ) ÷ 607] x 100 = -66.06%
Formula
Percentage change = [(206 - 607) / 607] x 100
Subtract the new number by the original number
206 - 607 = -401
-401 ÷ 607 = -0.6606260296540363
-0.6606260296540363 x 100 = -66.06%