-68.78% is the change from 205 to 64
Calculation steps:
[( 64 - 205 ) ÷ 205] x 100 = -68.78%
Formula
Percentage change = [(64 - 205) / 205] x 100
Subtract the new number by the original number
64 - 205 = -141
-141 ÷ 205 = -0.6878048780487804
-0.6878048780487804 x 100 = -68.78%