-78.23% is the change from 294 to 64
Calculation steps:
[( 64 - 294 ) ÷ 294] x 100 = -78.23%
Formula
Percentage change = [(64 - 294) / 294] x 100
Subtract the new number by the original number
64 - 294 = -230
-230 ÷ 294 = -0.782312925170068
-0.782312925170068 x 100 = -78.23%