1188% is the change from 50 to 644
Calculation steps:
[( 644 - 50 ) ÷ 50] x 100 = 1188%
Formula
Percentage change = [(644 - 50) / 50] x 100
Subtract the new number by the original number
644 - 50 = 594
594 ÷ 50 = 11.88
11.88 x 100 = 1188%
Example