-61.83% is the change from 186 to 71
Calculation steps:
[( 71 - 186 ) ÷ 186] x 100 = -61.83%
Formula
Percentage change = [(71 - 186) / 186] x 100
Subtract the new number by the original number
71 - 186 = -115
-115 ÷ 186 = -0.6182795698924731
-0.6182795698924731 x 100 = -61.83%