-88.76% is the change from 623 to 70
Calculation steps:
[( 70 - 623 ) ÷ 623] x 100 = -88.76%
Formula
Percentage change = [(70 - 623) / 623] x 100
Subtract the new number by the original number
70 - 623 = -553
-553 ÷ 623 = -0.8876404494382022
-0.8876404494382022 x 100 = -88.76%