-14.46% is the change from 83 to 71
Calculation steps:
[( 71 - 83 ) ÷ 83] x 100 = -14.46%
Formula
Percentage change = [(71 - 83) / 83] x 100
Subtract the new number by the original number
71 - 83 = -12
-12 ÷ 83 = -0.14457831325301204
-0.14457831325301204 x 100 = -14.46%