-81.11% is the change from 323 to 61
Calculation steps:
[( 61 - 323 ) ÷ 323] x 100 = -81.11%
Formula
Percentage change = [(61 - 323) / 323] x 100
Subtract the new number by the original number
61 - 323 = -262
-262 ÷ 323 = -0.8111455108359134
-0.8111455108359134 x 100 = -81.11%