-64.79% is the change from 977 to 344
Calculation steps:
[( 344 - 977 ) ÷ 977] x 100 = -64.79%
Formula
Percentage change = [(344 - 977) / 977] x 100
Subtract the new number by the original number
344 - 977 = -633
-633 ÷ 977 = -0.6479017400204709
-0.6479017400204709 x 100 = -64.79%