-1.64% is the change from 977 to 961
Calculation steps:
[( 961 - 977 ) ÷ 977] x 100 = -1.64%
Formula
Percentage change = [(961 - 977) / 977] x 100
Subtract the new number by the original number
961 - 977 = -16
-16 ÷ 977 = -0.016376663254861822
-0.016376663254861822 x 100 = -1.64%