-89.05% is the change from 210 to 23
Calculation steps:
[( 23 - 210 ) ÷ 210] x 100 = -89.05%
Formula
Percentage change = [(23 - 210) / 210] x 100
Subtract the new number by the original number
23 - 210 = -187
-187 ÷ 210 = -0.8904761904761904
-0.8904761904761904 x 100 = -89.05%