-6.1% is the change from 82 to 77
Calculation steps:
[( 77 - 82 ) ÷ 82] x 100 = -6.1%
Formula
Percentage change = [(77 - 82) / 82] x 100
Subtract the new number by the original number
77 - 82 = -5
-5 ÷ 82 = -0.06097560975609756
-0.06097560975609756 x 100 = -6.1%