1643.24% is the change from 37 to 645
Calculation steps:
[( 645 - 37 ) ÷ 37] x 100 = 1643.24%
Formula
Percentage change = [(645 - 37) / 37] x 100
Subtract the new number by the original number
645 - 37 = 608
608 ÷ 37 = 16.43243243243243
16.43243243243243 x 100 = 1643.24%