-70.97% is the change from 186 to 54
Calculation steps:
[( 54 - 186 ) ÷ 186] x 100 = -70.97%
Formula
Percentage change = [(54 - 186) / 186] x 100
Subtract the new number by the original number
54 - 186 = -132
-132 ÷ 186 = -0.7096774193548387
-0.7096774193548387 x 100 = -70.97%