-77.62% is the change from 648 to 145
Calculation steps:
[( 145 - 648 ) ÷ 648] x 100 = -77.62%
Formula
Percentage change = [(145 - 648) / 648] x 100
Subtract the new number by the original number
145 - 648 = -503
-503 ÷ 648 = -0.7762345679012346
-0.7762345679012346 x 100 = -77.62%