-75.93% is the change from 378 to 91
Calculation steps:
[( 91 - 378 ) ÷ 378] x 100 = -75.93%
Formula
Percentage change = [(91 - 378) / 378] x 100
Subtract the new number by the original number
91 - 378 = -287
-287 ÷ 378 = -0.7592592592592593
-0.7592592592592593 x 100 = -75.93%