-42.48% is the change from 645 to 371
Calculation steps:
[( 371 - 645 ) ÷ 645] x 100 = -42.48%
Formula
Percentage change = [(371 - 645) / 645] x 100
Subtract the new number by the original number
371 - 645 = -274
-274 ÷ 645 = -0.4248062015503876
-0.4248062015503876 x 100 = -42.48%