-82.43% is the change from 461 to 81
Calculation steps:
[( 81 - 461 ) ÷ 461] x 100 = -82.43%
Formula
Percentage change = [(81 - 461) / 461] x 100
Subtract the new number by the original number
81 - 461 = -380
-380 ÷ 461 = -0.824295010845987
-0.824295010845987 x 100 = -82.43%