-93.15% is the change from 934 to 64
Calculation steps:
[( 64 - 934 ) ÷ 934] x 100 = -93.15%
Formula
Percentage change = [(64 - 934) / 934] x 100
Subtract the new number by the original number
64 - 934 = -870
-870 ÷ 934 = -0.9314775160599572
-0.9314775160599572 x 100 = -93.15%