-70.5% is the change from 261 to 77
Calculation steps:
[( 77 - 261 ) ÷ 261] x 100 = -70.5%
Formula
Percentage change = [(77 - 261) / 261] x 100
Subtract the new number by the original number
77 - 261 = -184
-184 ÷ 261 = -0.7049808429118773
-0.7049808429118773 x 100 = -70.5%