-76.65% is the change from 621 to 145
Calculation steps:
[( 145 - 621 ) ÷ 621] x 100 = -76.65%
Formula
Percentage change = [(145 - 621) / 621] x 100
Subtract the new number by the original number
145 - 621 = -476
-476 ÷ 621 = -0.7665056360708534
-0.7665056360708534 x 100 = -76.65%