-66.53% is the change from 236 to 79
Calculation steps:
[( 79 - 236 ) ÷ 236] x 100 = -66.53%
Formula
Percentage change = [(79 - 236) / 236] x 100
Subtract the new number by the original number
79 - 236 = -157
-157 ÷ 236 = -0.6652542372881356
-0.6652542372881356 x 100 = -66.53%