-86.6% is the change from 1000 to 134
Calculation steps:
[( 134 - 1000 ) ÷ 1000] x 100 = -86.6%
Formula
Percentage change = [(134 - 1000) / 1000] x 100
Subtract the new number by the original number
134 - 1000 = -866
-866 ÷ 1000 = -0.866
-0.866 x 100 = -86.6%