-66.1% is the change from 236 to 80
Calculation steps:
[( 80 - 236 ) ÷ 236] x 100 = -66.1%
Formula
Percentage change = [(80 - 236) / 236] x 100
Subtract the new number by the original number
80 - 236 = -156
-156 ÷ 236 = -0.6610169491525424
-0.6610169491525424 x 100 = -66.1%