-93.1% is the change from 928 to 64
Calculation steps:
[( 64 - 928 ) ÷ 928] x 100 = -93.1%
Formula
Percentage change = [(64 - 928) / 928] x 100
Subtract the new number by the original number
64 - 928 = -864
-864 ÷ 928 = -0.9310344827586207
-0.9310344827586207 x 100 = -93.1%