-91.79% is the change from 938 to 77
Calculation steps:
[( 77 - 938 ) ÷ 938] x 100 = -91.79%
Formula
Percentage change = [(77 - 938) / 938] x 100
Subtract the new number by the original number
77 - 938 = -861
-861 ÷ 938 = -0.917910447761194
-0.917910447761194 x 100 = -91.79%