-79.32% is the change from 977 to 202
Calculation steps:
[( 202 - 977 ) ÷ 977] x 100 = -79.32%
Formula
Percentage change = [(202 - 977) / 977] x 100
Subtract the new number by the original number
202 - 977 = -775
-775 ÷ 977 = -0.7932446264073695
-0.7932446264073695 x 100 = -79.32%