-78.11% is the change from 370 to 81
Calculation steps:
[( 81 - 370 ) ÷ 370] x 100 = -78.11%
Formula
Percentage change = [(81 - 370) / 370] x 100
Subtract the new number by the original number
81 - 370 = -289
-289 ÷ 370 = -0.7810810810810811
-0.7810810810810811 x 100 = -78.11%