-78.4% is the change from 375 to 81
Calculation steps:
[( 81 - 375 ) ÷ 375] x 100 = -78.4%
Formula
Percentage change = [(81 - 375) / 375] x 100
Subtract the new number by the original number
81 - 375 = -294
-294 ÷ 375 = -0.784
-0.784 x 100 = -78.4%
Example