-59.77% is the change from 977 to 393
Calculation steps:
[( 393 - 977 ) ÷ 977] x 100 = -59.77%
Formula
Percentage change = [(393 - 977) / 977] x 100
Subtract the new number by the original number
393 - 977 = -584
-584 ÷ 977 = -0.5977482088024565
-0.5977482088024565 x 100 = -59.77%