-66.95% is the change from 236 to 78
Calculation steps:
[( 78 - 236 ) ÷ 236] x 100 = -66.95%
Formula
Percentage change = [(78 - 236) / 236] x 100
Subtract the new number by the original number
78 - 236 = -158
-158 ÷ 236 = -0.6694915254237288
-0.6694915254237288 x 100 = -66.95%