-93.42% is the change from 972 to 64
Calculation steps:
[( 64 - 972 ) ÷ 972] x 100 = -93.42%
Formula
Percentage change = [(64 - 972) / 972] x 100
Subtract the new number by the original number
64 - 972 = -908
-908 ÷ 972 = -0.934156378600823
-0.934156378600823 x 100 = -93.42%