-66.38% is the change from 235 to 79
Calculation steps:
[( 79 - 235 ) ÷ 235] x 100 = -66.38%
Formula
Percentage change = [(79 - 235) / 235] x 100
Subtract the new number by the original number
79 - 235 = -156
-156 ÷ 235 = -0.6638297872340425
-0.6638297872340425 x 100 = -66.38%