-80.35% is the change from 977 to 192
Calculation steps:
[( 192 - 977 ) ÷ 977] x 100 = -80.35%
Formula
Percentage change = [(192 - 977) / 977] x 100
Subtract the new number by the original number
192 - 977 = -785
-785 ÷ 977 = -0.8034800409416581
-0.8034800409416581 x 100 = -80.35%