643.4% is the change from 53 to 394
Calculation steps:
[( 394 - 53 ) ÷ 53] x 100 = 643.4%
Formula
Percentage change = [(394 - 53) / 53] x 100
Subtract the new number by the original number
394 - 53 = 341
341 ÷ 53 = 6.433962264150943
6.433962264150943 x 100 = 643.4%