-70.39% is the change from 206 to 61
Calculation steps:
[( 61 - 206 ) ÷ 206] x 100 = -70.39%
Formula
Percentage change = [(61 - 206) / 206] x 100
Subtract the new number by the original number
61 - 206 = -145
-145 ÷ 206 = -0.7038834951456311
-0.7038834951456311 x 100 = -70.39%