-83.4% is the change from 536 to 89
Calculation steps:
[( 89 - 536 ) ÷ 536] x 100 = -83.4%
Formula
Percentage change = [(89 - 536) / 536] x 100
Subtract the new number by the original number
89 - 536 = -447
-447 ÷ 536 = -0.8339552238805971
-0.8339552238805971 x 100 = -83.4%