-72.85% is the change from 291 to 79
Calculation steps:
[( 79 - 291 ) ÷ 291] x 100 = -72.85%
Formula
Percentage change = [(79 - 291) / 291] x 100
Subtract the new number by the original number
79 - 291 = -212
-212 ÷ 291 = -0.7285223367697594
-0.7285223367697594 x 100 = -72.85%