-66.95% is the change from 233 to 77
Calculation steps:
[( 77 - 233 ) ÷ 233] x 100 = -66.95%
Formula
Percentage change = [(77 - 233) / 233] x 100
Subtract the new number by the original number
77 - 233 = -156
-156 ÷ 233 = -0.6695278969957081
-0.6695278969957081 x 100 = -66.95%