Jerry used to have $438.00 in the bank but after a year the amount increased to $534.36. This was an increase of _____%.

Answer:
This was an increase of 22%
Step-by-step explanation:
Given:
Initial/Old amount = $438.00
New amount = $534.36
The percentage increase = [tex] \frac{new amount - old amount}{old amount}*100 [/tex]
% increase = [tex] \frac{534.36 - 438.00}{438.00}*100 [/tex]
[tex] = \frac{96.36}{438.00}*100 = \frac{96.36*100}{438.00} [/tex]
[tex] = \frac{9636}{438.00} = 22 [/tex]
This was an increase of 22%.